Falling somewhere between the Scorpion Pistol and Carbine is this oddity. Strange though it may be, it s perfectly set up for those who desire a two-stamp gun. The extended forend from the Carbine will hide most 9mm and hybrid cans, while offering M-LOK attachment points and boosting the sight radius a good deal. Still using the 7.7 barrel of the standard Scorpion Pistol, a 5 KAK Flash Can extends the barrel to just a hair past the forend. Dual threads of 18 1 and 1/2 28 make fitting a suppressor simple, and adding an arm brace or cheek rest is as easy as can be with CZ's accessory adapter kit. Even simpler is the addition of the factory folding stock, assuming you can stomach the ATF s current wait times. The CZ Scorpion EVO 3 S1 Pistol is legally classified by the ATF as a pistol, and is intended by CZ-USA to be used as a pistol. Under current federal law and ATF policy attaching a stock to this pistol or attaching a device which is then used as a stock or intended to be used as a stock constitutes the making of a short-barreled rifle which requires registration with ATF and the payment of the applicable tax. Users of the CZ Scorpion EVO 3 S1 Pistol bear the sole responsibility for ensuring their use of the firearm complies with all local, state, and federal firearms laws. Technical Specifications Product Name CZ Scorpion EVO 3 S1 Pistol w/ Flash Can Chambering 9mm Luger Magazine Capacity 20+1 Magazine Type Double stack polymer Frame Fiber-reinforced polymer Grips Polymer, adjustable for reach to trigger Trigger Mech SA Sights Low-profile fully adjustable aperture and post, 4 rear aperture sizes Barrel Cold hammer forged, muzzle threaded 18x1 right-hand and 1/2x28 Barrel Length 7.72 Weight 5.7 lbs Overall Length 20.4 in Height 9.4 in Safety Ambidextrous thumb safety