We recommend using a 4ounce hammer and a 1/8” hardened Punch.

Steps to removing gas block pins
1.            Secure the complete upper down to a table/bench ( This plays  a big part )
2.            Use a punch as close to the size pin as you can ( To avoid hitting pin at angle or mushrooming head )
3.            Drive pins out from the unlasered side of the block out
4.            Once pin moves into the block switch to smaller punch to remove all the way

               If this does not help you in succeeding to remove the gas block, our next suggestion would be to take your upper to a local smith for removal. Please let me know if there is anything else we can do to assist you. I can be contacted at [email protected] .

Cody
Adams Arms
Customer Service