This jig is designed to securely hold an AR-15 gas block and gas tube during assembly.
This allows both hands to be free to install the gas tube roll pin.
Simple drop in design saves time and works with a large variety of AR-15 gas blocks on the market.
Made of 6061 aluminum to protect the surface finish of the gas block.
Simply place the jig in a table vise, set the gas block in place, insert the gas tube and install the roll pin with a roll pin punch.