Removing and re-installing Pinned Gas block
- Thread starter Benito
- Start date
It can only be re-installed on the barrel it came from. The holes through the gas block/front sight housings are drilled while the barrel and block are in a fixture for that purpose. They are mated together for life and one block can not normally be installed on a different barrel without modification to the block.
Scott
Scott
The pins are probably tapered pins - only one way out and in.
The gas block may be tight on the barrel, and take a bit of effort to remove. If it is really tight, getting it back on, properly aligned, could be interesting.
You won't kinow until you try. But yes, it should be entirely possible to remove and replace the gas block.
The gas block may be tight on the barrel, and take a bit of effort to remove. If it is really tight, getting it back on, properly aligned, could be interesting.
You won't kinow until you try. But yes, it should be entirely possible to remove and replace the gas block.
No problem....it will NOT be less secure . Typically tapered pins so just drive them to the original depth
Key thing to remember is have a good punch ( Starett for example ). Just be carefull because most punches have flat bottom. A concave punch ( nail set ) is sometimes nice since it doesn't skate off and scratch your gas block / sight
Most are pins drive out from left to right. Notable exceptions are Stag and S&W MP15s that drive out right to left
I have a brownells jig...the best $30 I ever spent . It cradles the front sight perfectly and even has two faces...one that is clearly marked "pins out" and other " pins in" ...no thinking required
Even if you block with 2X4 or other wood , upper will roll. Best to have someone hold it for you
Key thing to remember is have a good punch ( Starett for example ). Just be carefull because most punches have flat bottom. A concave punch ( nail set ) is sometimes nice since it doesn't skate off and scratch your gas block / sight
Most are pins drive out from left to right. Notable exceptions are Stag and S&W MP15s that drive out right to left
I have a brownells jig...the best $30 I ever spent . It cradles the front sight perfectly and even has two faces...one that is clearly marked "pins out" and other " pins in" ...no thinking required
Even if you block with 2X4 or other wood , upper will roll. Best to have someone hold it for you
dangertree
Business Rep
- Location
- NL/ON/FL/PL
Good advice.
We use the Brownells jig, and as you say, just do the opposite of the pins-in pins-out directions on the Stags. (Which was done originally as a means to differentiate Stag from Colt).
