What's in the Box Q Mini FIX SD 300 Blackout Semi-Auto Short-Barrelled Rifle (1) 10-Round Magazine Cable Lock Owner's Manual The mini FIX SD is the Mini Action version of The Fix in a two-stamp SBR/Suppressor format. The mini FIX pistol has a smaller receiver and bolt assembly, accepts the M4 magazine, has a smaller bolt assembly, and is offered in 300 BLK. It also comes with a suppressor as well as a longer, girthier handguard to protect your hands from the suppressor. Product Features One-Piece Receiver 45* Short Throw Bolt Handle Free Float Q-Sert Hanguard AR/M4 Magazine Compatible Full Length M1913 Picatinny Top Rail Muzzle; Threaded and Tapered Muzzle w/ Cherry Bomb Muzzle Brake Trigger: 2-Stage Match AR Controls Firearm Specifications Manufacturer Q Model Mini FIX SD Model 8" 300 BLK SBR w/Suppressor Weight 5 lbs 12 oz Length (Open) 33.75" Length (Open, Fully Extended) 34.95" Length (Folded) 24.13" Barrel 8" , 1:5 Twist, Tapered Profile, Stainless Steel Threads 5/8-24 Accent Color Black Silencer Length 8 in Silencer Weight 14 oz Silencer Diameter 1.75 in Silencer Material 100% Titanium Silencer Coating PVD Mount Quickie Fast-Attach