Quote:
Originally Posted by rmh3481
I had a Colt Expanse brought to me like this one that refused to run. Tried everything. I was going to break it down and redrill the gas port and then use an adjustable block. Tried a compensator as a last resort and it did the trick.. A compensator is like a flash hider, but with a closed front end that just allows the bullet to pass thru. It keeps the pressure curve in the barrel for just a split second longer. Just long enough to work the action. Once you get 500 rounds thru it you will look back on this. I would also move up to Lake City 5.56 ammo because it has a little more pop than Bronze. Good luck with it.
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Another approach might be to leak less.