With Taran Tactical’s mag base pad, overall capacity of the Sig MPX PCC becomes 41+1 rounds of 9mm. SIG contended that this device was a muzzle brake, but in 2013 the BATFE ruled that the component was a suppressor, and classified the MPX-C as possessing an integral suppressor and thus as a Title II NFA weapon. [1] It is designed in this way to prevent water or dirt from entering the chamber and causing malfunctions as well as to use a suppressor with greater ease. The charging handle of the weapon is at the back of the weapon, based on the AR-15 design. It's discussed more in the MPX thread we have stickied here. There are two gens of mags and two gens of MPX, and Sig recommends that you use the correct gen, but people have reported no problems using Gen 1 mags in Gen 2 guns. Out having some fun with my Sig Sauer MPX chambered in 9mm. SmallArmsSolutions Recommended for you. The semi-automatic version of the weapon can be registered as a Short-Barreled Rifle in most states in the United States.[4]. Out having some fun with my Sig Sauer MPX chambered in 9mm. Entries (RSS) The BATFE rejected an appeal against this ruling in February 2014; SIG responded by filing a civil lawsuit against the BATFE,[12] alleging they had acted in an "arbitrary and capricious manner". It’s the smallest MPX variant to date, and likely the smallest in the braced pistol PCC out there. In the US in 2015 the BATFE warned users of weapons using SIG stabilizing braces that shouldering a weapon fitted with a brace constituted the making of a Title II NFA weapon, reversing a prior ruling that it did not. The feed lips are also a little different. I've heard the earlier generation had a lot of issues with reliability. for Sig, “gen 3” means they’ve sold enough units to civilian market aka beta testers, kinks have been ironed out so sig is preparing to discontinue the product shortly. Buy, Sell, and Trade your Firearms and Gear. I do not like what SIG has done to the sides of the latest gas blocks. SIG MPX Gen1 Handguard 2 inch rail adapter (2In. The weapon's rails are made out of cast steel and the standard weapon overall weighs 2.1 kilograms (4.6 lb). Some criticize the Sig MPX sights, they are great, function just as they should and remind me of Troy flip ups. Soldier Systems Daily is in no way affiliated with the US Government. Also tested now and she loads from closed bolt also. This particular firearm is the generation 2 model. A lot of places periodically have blow out sale prices on the Gen 1s, so if they work on your MPX, get what ever is cheaper. This SIG SAUER gives MPX owners the best of both worlds – a light, polymer body and reinforced steel components. In September 2015, Federal Judge Paul Barbadora upheld the BATFE's ruling. The barrel is free-floating and is surrounded by polymer/steel Picatinny rail (later M-LOK) mounts. We reserve the right to refuse advertising to anyone The Gen 2 Sig MCX Virtus - Duration: 21:57. I'm considering one or building a 9mm PCC on a complete AR lower I have and use a CMMG 9mm upper. A pistol variant with a three-position collapsible arm support with a stock like appearance, three-position fire selector if it supports full automatic and an 14” blind pined and welded muzzle brash 16”, 8.0, 6.0 4.5 inch barrel.[9]. 6:56. The SIG MPX is a gas-operated submachine gun designed and manufactured by SIG Sauer, and is primarily chambered in 9×19mm Parabellum cartridge. SIG Sauer recently published this video detailing the differences between the GEN 1 and GEN 2 MPX. The major difference between the models is the GEN 1 is 9mm only, and the GEN 2 is configured to take advantage of the multi-caliber exchange system. yep. So, I talked to Tim in Sig’s Customer Service Department. Texas Gun Vault 26,164 views. 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