Cross Machine Tool J.A.G. Low Profile AR-15 Gas Block - Set Screw - .875"

Aero Precision Low Profile Gas Block .750" - Set Screw

Superlative Arms Solid Set Screw Direct Impingement Adjustable Gas Block 0.875" x 1", Tan

Superlative Arms Solid Set Screw Direct Impingement Adjustable Gas Block 0.875" x 1", Gray

Superlative Arms Solid Set Screw Direct Impingement Adjustable Gas Block 0.936" x 1", Tan

Superlative Arms Solid Set Screw Direct Impingement Adjustable Gas Block 0.875" x 1", Black

Superlative Arms Solid Set Screw Direct Impingement Adjustable Gas Block 0.936" x 1", Black

Superlative Arms Solid Set Screw Direct Impingement Adjustable Gas Block 0.75" x 1", Tan