AR15 Gas Block Pinning
Pin your FSB or low profile gas block to your AR
This service is for pinning A1/A2 front sight posts or pinning a low profile gas block to your AR barrel.
For triangular front sight posts, we use 2/0 taper pins. We can reuse barrels or FSBs with bigger taper pins.
For low profile gas blocks, we can install a taper pin, straight pin, or a provided pin from a kit.