Gas Block Roll Pin Stuck

Use an old drill bit that fits the roll pin use the smooth part.

Gas block roll pin stuck.

Most gas blocks especially low profile gas blocks use 3 32 and 5 32 roll pins for securing the block to the barrel and the gas tube to the block. Cut some wood blocks that roughly fit the gas block so you have something to push against when you mount the c clamp. A couple of good hits and i shatered the pin punch which left a piece of it in my finger i gave up on that idea and decided to drill it out on mydrill press. Anywhere between 1 and 6 smacks and the pin moves.

I must commend your homemade redneck engineering efforts but i suspect they won t hold up over the long haul and will probably vibrate loose. Freeze and heat the roll pin to loosen it if the pin is in a small object. Use a small set of channel locks and a piece of leather for padding to gently rotate the gas tube back and forth while pulling and it will come out. Maybe with a small c clamp.

To hold the old gas block on i just used roll pins. Place the metal object with the roll pin in it in the freezer for 4 5 hours. Then retrieve the object from the freezer and take it out to your garage or workshop. Now get the tiny little 1 8 punch to push the pins out of the fsb.

All you want to do is to get it to move to about flush. You might have to rig up some sort of pusher. The tapered pins used on the gas blocks of ak s and ar s are a special pin used to fasten the blocks to the barrels. Use a propane torch to heat up the stuck roll pin until it s red hot.

Probably need another set of hands. Using a 5 16 punch and a 12oz hammer give her a smack. The pin was stuck so i centerpunched it so that the tappered pinpunch would not walk. To prevent damage to the receiver s threads and the barrel nut grease is required when tightening and loosening the barrel nut.

I was looking in brownells but i didn t see. To seat these roll pins punches are typically required. Fixing a gas block pin that split. Gas tube roll pin install made easy.

The taper pins just require a larger hammer i use a 2lb sledge and a brass punch and drift it in the correct direction as the pins are tapered.