KNIGHTS ARMAMENT Piston Assy MK23 M16X1 Rh TPI

Superlative Arms Mid-Length Piston System w/Solid Set Screw Gas Block 0.625" x 1", Black

Superlative Arms Carbine-Length Piston System w/Solid Set Screw Gas Block 0.625" x 1", Black

Superlative Arms Rifle-Length Piston System w/Solid Set Screw Gas Block 0.625" x 1", Black

Superlative Arms Carbine-Length Piston System w/Solid Set Screw Gas Block 0.625" x 1", Black

Superlative Arms Pistol-Length Piston System w/Solid Set Screw Gas Block 0.75" x 1", Black

Superlative Arms Mid-Length Piston System w/Clamp-On Gas Block 0.625" x 1", Black

Superlative Arms Pistol-Length Piston System w/Solid Set Screw Gas Block 0.75" x 1", Black