Adams Arms FGAV47003: The VooDoo Innovations Glock Match Grade Barrel is designed as an improved drop-in fit. The barrel is machined to tighter fitment tolerances to increase accuracy potential without the need of gunsmith fitting. It features a Saami spec 9mm match chambering, match grade rifling, and machined from 416rd stainless steel. This threaded model has a black melonite/PVD finish, 1/2x28" threads, and includes a thread protector. It is compatible with Glock 17 slide and frame.