Expo Arms Low Profile AR-15 Gas Block - Nitride - Set Screw - .750"

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

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 0.875" x 1", Black

Superlative Arms Solid Set Screw Direct Impingement Adjustable Gas Block 0.625" x 1", Gray

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", Gray

DMA Inc. AR-15 Micro .750" Low Profile Gas Block - Black Oxide