Take your Gen 5 Glock 17 up a notch with the Griffin Armament® ATM Barrel for Glock 17 Gen 5 with Micro Carry Comp - 1/2x28. Honed and polished chambers ensure reliable function across a broad range of ammo while broach cut rifling reduces stress and provides uniformity across the bore. The Griffin Advanced Threaded Match (ATM) barrel boasts a 1:10 twist rate that ensures superior precision, and this barrel is micro carry comp torqued to 8ft/lbs. This aftermarket barrel is billet machined from 416R stainless steel to exacting tolerances for the ultimate drop-in match performance. This SAAMI-spec chamber barrel features a corrosion-resistant nitride finish and has a 1/2x28 threaded muzzle for suppressor and other muzzle devices. Also features a target crowned muzzle.