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(No supressed experience here) And I believe they changed the design of the charging handle or perhaps I could modify a gasket or purchase an aftermarket handle. The taper adapter will help and can be found at a couple different spots for $10ish. So we snagged a Larson Davis SoundTrack LxT-QPR sound level reader thats rated for the sharp pops of gunfire. Let Our Experts Guide You. Curious but are you using a KeyMicro or a direct thread when you get it out of jail? Top 10 Best Suppressor For Sig Mpx Reviews For You | STELAD Suppressor maintenance is important, and the Banish 223 is easily disassembled from both ends for cleaning and maintenance. I think most of the gas leaks are at the charging handle (?) The only downside of them is the price. Silencer Centrals Banish 45 might be the perfect solution if you have a couple handguns that need suppression and you dont have loads of cash to pay for multiple tax stamps and silencers. The next generation of suppressor technology has arrived. Good question. The new value of a SIG SAUER MPX rifle has risen $38.45 dollars over the past 12 months to a price of $2,015.15 . Silencers & Suppressed Firearms; Collectible Firearms. Now for the wait. We try our best to provide the most accurate information available, please inquire for any clarifications. Sig Sauer suppressors are made to exceptional standards and to a high quality for reducing muzzle noise and jump after every shot. Mitigate your muzzle jump and recoil with these muzzle devices from Sig available in many calibers and finishes. You can unscrew the top cap to make it shorter. SIG 8901268 STOCK SPEAR MCX MPX FOLD MIN+ COY. Best way to suppress a Sig MPX? - Florida, Alabama, Gulf Coast Gun Talk Some states have legal restrictions for the purchase of items so we need to ask for your location. They both suggested Osprey for pistols. The Sig MPX is very unique being a short-stroke push-rod gas system. One of the first things we wanted to address was sound suppression. Click Here to check out the current prices of the PSB brace. 9mm Federal Premium HST. Prolongs magazine life. Mechanix Wear 6In Suppressor Cover. I'm looking to avoid replacing the barrel. Need some barrel threading? What do you think of the XCaliber SeaFire Diamond 45ACP from The Silencer Store? In that article, I talked about the fact that my end goal for this project was to put together the ultimate personal defense weapon a suppressed 9mm subgun. After way too much internet research, I talked to my vet/NFA Class 3 FFL range buddy. Perhaps it can be tuned to run it. This means you want to be able to mount a suppressor on the Sig MPX Copperhead. I currently own an Octane 45 (which works well on a CZ Evo Scorpion) and I have an Osprey 40 pending stamp. When I got home, I did a thorough cleaning of the MPX. An angled foregrip is perfectly legal though. I dont see myself rapid firing 20 rounds inside my home. We also wanted a small red-dot optic with a wide-open objective to maximize engagement speed when faced with the potential of an across-the-coffee-table gunfight. We were still able to mount all our desired accessories, but it did require grinding down some of the screws on our M-LOK mounts to avoid screwing into the body of the can itself (weve run into the same issue with other integrals). We already have an account registered for email address SIG Sauer MPX Lula 9mm Magazine Loader. To build the ultimate sub-gun or pistol caliber firearm that can be used for home defense, truck/vehicle gun, or something just to have fun at the range with. Mods Compatibility MPX-SD 9x19 165mm barrel Suppressors (Functional Mods) Categories Languages I have a passion for firearms and enjoy writing articles on these topics. Zoom the image with the mouse . Because a silencer doesnt mean you shouldnt also wear hearing pro. With A Little Help From My Friends by Joe Cocker, http://sigtalk.com/sig-sauer-rifles/57872-my-omega-9k-suppressor-arrived-my-mpx-sbr.html, http://sigtalk.com/sig-sauer-rifles/54303-shot-mpx-suppressed-last-weekend.html, SilencerCo Octane Fixed Mount - Pistol Silencer Accessories - Accessories. Even though I like attaching it a little further forward this gets the job done. **NO CC FEES** Make: Sig Sauer. SIG Sauer MPX Parts & Accessories | Cheaper Than Dirt Available to help: Mon-Thur. MGW is proud to carry these quality Sig Sauer parts that are designed for optimal performance. I'm sure it works well but the shape is too goofy for me and I'd rather be able to disassemble the suppressor for cleaning. Before we dive into some awesome silencers, lets take a moment to talk hearing safe.. Best silencer for Glocks and Sig MPX - AR15.COM Originally when working on this build I wanted to go with an EOTech XPS2 Holographic sight in FDE (Flat Dark Earth). I had the Magpul light mount laying around so thats what I went with for now. Please update for real or kick back the date so people dont click and waste their time! Sig Mpx Copperhead 9mm 4.5" 20rd Blk; New. Click Here to check the current prices of the Magpul MBUS Sights. Also, this might just be my experience but when I purchased my MPX it did not come with any fixed sights. Manufacturer Specs(SilencerCo Osprey 45): Check out the other Osprey models such as the Osprey 9, 9K, and 45K. *Must have a registered ARFCOM account to win. $94.95. They have three modes: High, Strobe, and Low. Hi, my name is Joseph Kocik. I already have one too and like everything about it. Call 888.781.8778, What is Suppressor Alignment & How Do You Do It, Shooting Down Seven Common Silencer Myths, Confirm product compatibility with your firearm, Let us guide you through the Form 4 process, Explain new ATF eForms for Lightning Fast Approvals. Again I am happy I have the Gen 2 version with the 8-inch rail. Sig MPX Gen 2 / KM MAGAZINES - Lot of 2 - SHIPS TODAY! The D3LLC integral suppressor uses a series of barrel ports to get whisper-quiet results even out of standard velocity ammunition. The PSB brace which is made by SB Tacticalwas the first upgrade I did to the MPX. This was a quick and easy upgrade for the Sig MPX. Thanks to the 3-lug mount I used, it was quick to remove and the Omega 9k is simple to disassemble and clean. I ended up throwing on some Magpul MBUS pop up sights because I had an extra set leftover from a previous rifle build. It is very good and holding zero and built like a tank. These flash hiders, muzzle breaks, and thread protectors are the perfect addition to any build. I didnt notice any problems in this regard while firing on the steel targets and plate racks I normally use at my range I was shooting around 5-10 shots in a row in fairly quick succession. And trying to keep it ultra compact. Brandon Maddox, CEO and owner of Silencer Central, is recognized as a national thought leader on Class 3 firearms. My Banshee is super accurate suppressed, felt like I couldn't miss at 50+ yards. I'm going to have a longer hand guard and I'm worried about the sections walking on me. It also takes SilencerCo Alpha mounts so its super modular. 9MM Muzzle Devices for Sale at Joe Bob Outfitters! Unfortunately, Im not allowed to own SBRs in my state so I cannot add a stock but there are a lot of Pistol Braces that are totally legal for me to use and thats what I ended up doing. It's not hard to pick one and stick with it to keep your poi the same. There is also the Army's new rifle, the MCX Spear, and new upgrades to the already existing MCX Virtus line of firearms. They work closely with D3 so if youd like your newly suppressed gun refinished while they have it, they can coordinate in tandem. The updates done supposedly for 2022 are not pertinent at allthese models are huge and bulky and outdated by 5+ years. For the best experience on our site, be sure to turn on Javascript in your browser. Surefire makes a good pressure switch to accommodate their lights and I like the one that still leaves the constant on button in the back of the light as well. I have been running my old YHM Cobra 40 M1 can and it's kind of loud. Geissele makes a great trigger and I have shot some of theirs in some rifles. Find the Best Suppressor For Sig Mpx in [2022] | Evinco Design All of the upgrades and accessories that have been added, compliment the gun nicely and make it close to a do-all firearm. The pistol grip on the SIG MPX is a standard AR-15-style pistol grip and it looks like SIG basically copied the Magpul MOE. It adds to the overall aesthetic of the MPX as well. Because of my familiarity with the SIG MPX from competition use, it was an easy choice as the foundation platform for this project. Both suggested that for our rifles Surefire SOCOM had the best blowback performance. Learn all the important stuff about handgunswith none of the attitude. Get Our Top Shooting Drills and Zeroing Targets ($47 value - but FREE for a limited time). 850guns Oct 14, 2020 The #1 community for Gun Owners of the Gulf Coast States Member Benefits: Fewer Ads! const join_popup = document.querySelector("#gform_submit_button_12"); The silencer is removable for easy cleaning. AR15/M16 AR15/M16 AR15/M16 AR10/SR25 AR10/SR25 AR10/SR25. Well see how comfortable it is when it starts heating up. For a better experience, please enable JavaScript in your browser before proceeding. I doubt Ill shoot my suppressed MPX more than two or three times a year. A company makes aftermarket barrels with 1/2x28 and or tri-lug but they are expensive. What began as Maddoxs home-based Federal Firearms License (FFL) evolved into a Class 3 Dealership and has grown into the nationwide brand it is today. Originally I thought about getting the newer Surefire M300C because it is smaller and I figured it would fit better on the 8 inch Sig MPX. Suppressors are just fun. The gun sucks to shoot suppressed indoors with every 115gr ammo I have used. Also talked to the Silencer Shop guys. Not cycling subsonic ammo seems like a major downside. Another note is that you cannot use the factory handguard, but the Midwest Industries M-LOK handguard works perfectly and offers additional M-LOK slots for accessory mounting. And the little extra weight in the back helps mitigate the more pronounced *cachunks* (first round pop) of shooting with suppressors. Is there a single recommended can that would work well with 9mm glock, sig MPX, and ar 15-22? Create an account to follow your favorite communities and start taking part in conversations. It should be noted that Dead Air only makes limited runs of the Wolf since they replaced it with the Wolfman which is very similar to the Omega 9K in size but has the benefit of the extra removable baffles. There's only 3 positions. Plus theres 3-lug adapters for your favorite MP5 clone. Its no secret that pistol-caliber carbines are an excellent choice for home defense or as truck guns. In that class, there are a couple of great options available with the SIG MPX being a Cadillac offering. Top 5 Best 9mm Suppressor of 2023 Reviews - TheGunZone The Best 9mm Suppressor - Silencer Shop MPX-SD 9x19 integrated sound suppressor (MPX-SD) is a suppressor in Escape from Tarkov . Please check your email for status updates. Lantac Dragon Muzzle Brake. [2] These design features, rare in submachine guns, were chosen to enhance the safety of the user and to have a more reliable firearm. I think its called the Dead Air DA414. I am considering the Omega 9K, Rugged Obsidian, Dead Air Ghost, and an Octane 45K, though currently the only ones that I've been able to find in stock are the Omega 9K and the Octane 45K. Best Suppressor For Sig Mpx - Noah Online RedWolf Airsoft has the Lowest Prices on Airsoft Guns with Price Match. 'For this man who needs amazing kind of grace, I don't have an MPX or MCX so can't answer that directly. Or I may just get a new barrel from ILWT. Nitride finish. Select what level shooter you are! By the end youll know the best suppressor for your handgun, PCC, or sub-gun. Definitely go with one. You can unscrew the last two inches for something even more compact. Wolfman or Omega9K seem to be most popular for the MPX from what I've seen SpirtualSherbert481 1 yr. ago I run the obsidian 9 on mine. Best way to suppress a Sig MPX? Of course it can reduce its length and open up for cleaning. Comparison Chart of Top 10 suppressor for sig mpx Best Turkey Choke For Remington 20 Gauge Best 5.56 Round For Hog Hunting Best Socks For Dancers Table Of Content: Feyachi GL6 Green Laser Sight with 45 Degree P13 Picatinny Rail Mount and Pressure Switch Feyachi Reflex Sight Adjustable Reticle 4 Styles Both Red and Green in one Sight! If you have an account, sign in with your email address. SMPX - Innovative Arms Silencers So mounting a light off the top rail isn't ideal. The Samson narrow profile, M-LOK handguard for SIG SAUER MPX pistols and carbines is the answer for those wishing to replace their large factory Keymod handguard. User Configurable Modular Baffle Design Titanium Construction Includes 1/2x28 and M13.5x1LH Pistons By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. There are better mounting options for this light, I recommend something that attaches directly to the key mod rail. Buy a SIG SAUER PMPX-3B-CH-NB NIB Sig Sauer MPX Copperhead 9MM. Featured products Banish 30 $999 The most versatile suppressor in the Banish line, the Banish 30 works with all of your rifle calibers from .17 to .30 caliber magnums. MPX-SD 9x19 integrated sound suppressor - Escape from Tarkov Wiki Weight: 9.7 ounces in full configuration with booster. But its last few baffle stacks are aluminum to reduce front weight. The SIG Sauer MPX submachine gun boasts an unprecedented operation speed in the familiar form factor of the AR platform. Have to sell this separ for sale by MrResistance on GunsAmerica.com the best online marketplace for buying and selling semi auto pistols, firearms, accessories, and collectibles : 978272049 . Mpx is a rare disease that is caused by infection with the mpx virus. document.addEventListener("DOMContentLoaded", function() { As with @bonifacio, I kinda made my own, though I went about it in a different manner; I purchased a 4.5" barrel from ILWT that has a built-in three lug adapter, and an adjustable gas plug from them as well. Sig Mod X9 for direct thread. Because I enjoy reading (or trying to) your articles and would love to help you present a much more clear, concise, comprehendible, and therefore more helpful product as well as presenting your organization and yourself as a much more professional and trustworthy source to your readers, colleagues, and critics. Suppressing the good ole 9mm AND .45 ACP is easy and theres plenty of options out there. How to Suppress a Sig Sauer MPX - YouTube Type your email address and well send In a defensive scenario, I dont anticipate Id fire more than 3-5 round controlled busts (at most). Shop Guns for sale at GunZoneDeals where we have a wide variety of handguns, rifles and shotguns for sale for the best deals! The early magazines had issues and the Gen 2 ones work well. I shoot it outdoors on steel. Showing 1 - 16 of 35 results Prev 1 2 3 Next I've been waiting for the Sig suppressors to hit the stores but it doesn't appear that will happen soon. Second Media Corp., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Best Sig MPX Upgrades & Accessories (Complete List) Looking forSIG Sauer MPX AEG Bolt Catch Lever (Part # 07-6) - by VFC? Griffin Armament DUAL-LOK Minamalist Stealth Flash Suppressor Usually Ships in 24 Hours MSRP: $94.95 . (Except 13.5 x 1. which is 2.16 oal. So because the Sig MPX is a pistol and not an SBR you cannot add a vertical foregrip. I have a Lantac Dragon KeyMo Brake for MPX (which I'm hopeful is a typo since the Wolfman takes the KeyMicro) on pre-order which will no doubt get here before the Wolfman breaks out of Jail. Check out the Rugged Obsidian 45. Looking forSIG Sauer MPX AEG Grip (Part # 02-26 - 02-31) - by VFC? Color Options. Raptor-LT SIG MPX Ambidextrous Charging Handle. The wide world of the NFA encompasses the most fun guns and accessories. Ready to buy? Nice upgrades. The MODX suppressors feature 21 points of impact adjustment and come with a fixed barrel spacer for carbine use. The scope has a very long battery life and the swing sensor on/off feature is amazing. Gulf Coast Gun Forum is an active weapons forum where folks in Florida, Mississippi, Alabama, Louisiana and the Gulf Coast of Texas can chat or buy/sell/trade weapons. CZ Scorpion Evo 3. Sig Sauer: www.sigsauer.com D3 LLC: www.d3llc.com Ronin Arms: www.roninarmsllc.com VZ Grips: www.vzgrips.com Cloud Defensive: www.clouddefensive.com. The combination of my SIG MPX pistol mated to the SilencerCo Omega 9k meets my requirements for use in home defense. I am planning to add a 1/2X28 piston to it so I can also use it on my 9mm Springfield XDM with raised sights for home defense. Best Sellers Rank #193,341 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #163 in Air Rifles . Their system requires customers send in their MPX upper to have a series of ports drilled into the barrel itself, much like the original MP5SDs. My FFL is trying to talk me into the DA Odessa 9. It mounts directly to KeyMod so there is no need to add additional rail sections. We go over the best 9mm and .45 ACP suppressors out on the market. Click Here for the current prices of a Trijicon MRO. John B. Holbrook, II is a freelance writer, photographer, and author of ThruMyLens.org, as well as LuxuryTyme.com and TheSeamasterReferencePage.com. We hate SPAM and promise to keep your email address safe. Maddoxs NFA expertise makes him a popular voice for the industry, and he speaks regularly at National Compliance Conferences. I like your trigger upgrade. Though, .22 LR suppressors significantly reduce the volume to 115-decibels. However, that steel in the back gives it a great balance on most handguns. Youve come to the right place. The top rail on this gun is cut somewhat short. Sig Sauer MPX Copperhead 9MM **NEW** **NO CC FEES** Top 5 Best 9mm Silencers Rugged Obsidian 9 Dead Air Wolfman SilencerCo Omega 9K Dead Air Odessa-9 Q Erector 9 Rugged Obsidian 9 1. So again, the gas blow-back issue seems to be a non-issue for me, but your mileage may vary. We love the Dead Air Ghost 45M for its modularity. [ARCHIVED THREAD] - silencer for a sig mpx k. Posted: 3/5/2021 10:34:22 AM EST. They are a favorite company of mine and everything they make is top-notch. Sig Sauer Muzzle Devices - MGW The original 8-inch-barreled version was intended to fill the same-size envelope as the much-vaunted HK MP5 with a modern gas system, AR-style controls, and modularity at both ends with M-LOK handguard and Picatinny rail endcap. The NFA (National Firearms Act) is annoying and encompasses a $200 tax stamp (which thankfully hasnt changed since it started). Sig Sauer MPX Suppressor View at Euro Optic This 9mm suppressor is specifically designed for 9mm Luger pistols, and it's made with a titanium tube that guarantees excellent durability without adding a ton of weight to your pistol. Speaking of accessories, we wanted to keep our SIG MPX SD as lean as possible, focusing on its specific role as a hearing-safe home-defense gun. Thanks! . I went with the Octane 45. The MPX bolt carrier group is where I noticed the most grime and residue I only shot a bit over 100 rounds, but the BCG looked as though Id shot much more than that. Lightweight. Lightweight. (Gun parts are expensive so I cant get everything all at once). Color Options. Okay, I hate to resurrect an old thread, and yes I've read the original posts and read through a similar thread on Reddit and one other spot. If you were thinking of a dedicated 9mm suppressoryou might want to rethink again. Also, make sure to check out our latest reviews on the Silencer Central Banish 30 and Banish 45. The suppressor itself wasnt too bad, it was fairly easily cleaned. By the time I got to about round 20, I had to stop firing as my eyes were burning from gases being blown back into my face. $124.95. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. The Scalarworks LEAP mount adds almost no weight while securing firmly with a thumb-dial tension screw and a mild forward bias. I have a Sig MPX gen2 SBR with an 8 inch barrel. The grip that came on the MPX is actually pretty good. 300 Blackout ammo is expensive relative to other choices. SIG SAUERs Jason St. John discusses SIGs next generation of suppressors, the SLX and SLH line. All Collectible Firearms; . Suppressed, the Rattler ran everything on the supersonic setting (less gas). guns & This short, rigid stock folds quickly but deploys with solid lockup, making it ideal for PDW applications like this. 1. Sig MPX vs CZ Scorpion: Fight For The Best Sub Gun Ever Made I know nothing of the mpx but could you source an extra barrel and thread it to the std 1/2 x 28? Fortis Muzzle Brake - 9MM Black Usually Ships in 24 Hours . Runtime is approximately two hours off a fully charged 18650 battery. An unsuppressed .22 LR measures about 145-decibels while a normal gunshot (were going to guess your average 9mm, .45 ACP, etc.) towards your level. We went with the Cloud Defensive REIN. MAC on YouTube had issues with the accuracy with a tri-lug at 20 yards which is unacceptable. SIG Rattler: Why the MCX Is the Perfect 300 Blackout PDW Solution The combination of its size, ease of use, rock-solid reliability, and the SilencerCo brand reputation make it an easy choice for a 1st-time suppressor buyer such as myself. The NFA is a giant paperwork and tax mess that makes freedom tough to enjoyso you want to make sure youre spending that money and time on a tool that is truly quality. With a multi-caliber suppressor youll be good to go from tiny rimfire all the way up to .45 ACP. Both sound good to me and both have blowback on the MPX. Being that the Sig MPX is a smaller firearm with only an 8-inch barrel, a single point sling would work well also. I asked this a while ago, census seemed to be Wolfman or CGS 9. LANTAC Dragon Muzzle Brake for SIG SAUER MPX-9x19mm Usually Ships in 24 Hours MSRP: $160.00 . I will soon though. Shop today! We recommend pausing a little after the equivalent of 60 rounds for it to cool down. JoeBob dun saved you $5.00! You basically have three ways to mount the Omega 9K to your MPX: 1. Of course, .22 ammo can be even dirtier than centerfire 9mm so I shudder to think about cleaning them. Edit . We took their new, Some of the less common but still awesome CCWs! I'd like to add an Obsidian 45 next, but as mentioned above, they are out of stock everywhere and have been for at least the last couple months. Also there have been improvements to the mpx. (, We noticed that you have previously logged in with your, Check what do you get by creating an account, Bookmark and compare your favorite firearms, 5 Best 9mm & .45 ACP Suppressors [Tested]. In other words, for me the suppressor isnt a novelty I have a very specific purpose. You are using an out of date browser. The Omega 9K is the best performing 9mm suppressor under 5 inches. Rugged Obsidian 9 What is the most effective suppressor? There is a small storage compartment in the grip that can be used to store any small items you wish. Thus eliminating the POI vs POA issue. Reason being is that it's a 13.5x1LH thread pitch. I currently like running a 2 point sling and this is what I recommend on almost everything. They also supplied their V-Crown 147-grain ammunition. SIG MPX - Wikipedia SIG 8901268 STOCK SPEAR MCX MPX FOLD MIN+ COY | GunZoneDeals We have the fastest shipping and the best customer service! See it in action with its 9mm version that has a pronounced pop on first shot: The CGS Mod-9 has an initial steel booster and one steel bafflewith the rest aluminum. . pipandhams 1 yr. ago Wolfman for the most quiet and omega 45k for the least amount of gas to face. MORE!!! TFBTV Mythbusting: Silenced SIG MPX 155,513 views Jun 27, 2016 In the comments to James' recent video review of the SIG MPX (click here to see it), he noticed that a number of TFB viewers. Taran Tactical John Wick Sig Mpx Rifle 30rd I just use the manufacturer markings orientation to keep it consistent. We here at Pew Pew Tactical try to be as scientific (or at least as even) as possible. I run an Omega 9K on my MPX-K. Coming in at #1 is the Rugged Obsidian 9: a pistol silencer that offers extreme versatility and one of the best warranties in the industry. Do you have a taper adapter source to recommend? Couldn't be happier! The goal with this sig mpx was to put together the best upgrades and accessories available. Plus you get to utilize Silencer Centrals easy setup where they send you things like fingerprint cards so you never have to step foot in an FFL. Now it is one of my favorite firearms and is a pleasure to shoot. [deleted] 1 yr. ago Curious but are you using a KeyMicro or a direct thread when you get it out of jail? I'm assuming it will fit inside a longer hand guard? I shoot subsonic 147gr ammo. //CRO classes for Join Our Inner Circle popup You do not pay This allows for a 3 position adjustment by pressing a button on the top part of the brace. Buy TARAN TACTICAL JOHN WICK SIG MPX RIFLE 30RD: GunBroker is the largest seller of Semi Auto Rifles Rifles Guns & Firearms All: 973741230 . } The SIG MPX K has a 4.5-inch barrel length and an overall length of 22.25 inches, cold hammer-forged carbon steel, and a Timney trigger. And trying to keep it ultra compact. This dramatic advancement in technology available with the SLX and SLH series of suppressors was realized through the wholesale transition of the SIG SAUER product line to new manufacturing techniques using Direct Metal Laser Sintering (DMLS) resulting in the most innovative suppressor technology on the market today. But because you cant crack it open to clean itdont shoot rimfire through it since they are so dirty. It is a gas-operated firearm featuring a closed, rotating bolt. The P226 is an accurate pistol. (No supressed experience here) And I believe they changed the design of the charging handle or perhaps I could modify a gasket or purchase an aftermarket handle. But, I felt I sort of owed it to this dealer to buy from him because I almost never use him for anything but FFL transfers. SIG Sauer MPX AEG Bolt Catch Lever (Part # 07-6) - by VFC What do you guys think I should get for a can? silencer for a sig mpx k - AR15.COM If you're looking to be a, The new 6.8x51mm cartridge adopted by the US Army. The Copperhead is the shorter variant with a smaller frame and an overall length of 15.5 inches, but it has a downside because of the inability to change handguards. Personally I think the "MPX blows to much gas in your face" is a load of ****.