The Noveske Stainless Lo-Pro Gas Block Barrel is a 300 AAC Blackout barrel machined from 416R stainless steel with a 1:7 twist and a hand-polished SAAMI 300 Blackout chamber. It features a pinned .750" low-profile gas block, an M4 barrel extension with extended, hand-polished feed ramps, a 60-degree muzzle crown, a bead-blasted finish, and 5/8X24 muzzle threads. Each barrel is individually serialized and includes a gas tube matched to its gas system.