The American Resistance 9mm SubGun is the perfect set up for your discreet carry situation. Our lower receiver is forged aluminum and features the patented Last Round Bolt Hold Open that works every time! Our BCG is Nitride coated, and perfected to work with Law Tactical’s Gen3-M Folding Stock Adapter, and Fostech’s Echo 2 binary trigger system. This platform comes standard with SB Tactical’s SBA3 adjustable pistol brace, and an M4 mil-spec buffer tube with a carbine buffer spring and 5.4oz 9mm specific buffer. The American Resistance 5.5″ Nitride coated barrel has a 1:10 twist, 1/2x36tpi, and will eat up any type of ammo you want to feed it (FMJ, hollow point, super sonic, sub-sonic, aluminum case, brass case, or steel case). The 4.4″ American Resistance free-float MLOK handguard gives you the ability to mount backup sights, flash lights, or any other accessory. We also built this one with XTech Tactical’s adjustable grip to allow you to angle the grip to your preference. Ships with one Magpul PMAG 21rd if your state permits. Backed by our lifetime warranty and guarantee.