Rosco Non-Adjustable Gas Block

Rosco Non-Adjustable Gas Blocks are purposely designed to be lined up perfectly with Rosco barrels and gas ports to ensure reliable cycling every time. The Non-Adjustable gas block is a direct plug in for any one of Rosco's barrels and has provisions for pinning. Material: 4140 Steel Designed to be lined up perfectly with Rosco barrels Direct plug in for any one of Rosco's barrels Has provisions for pinning