10-06-2011, 07:37 PM
I had an AK that was horribly over-gassed from the US factory that assembled the kit on their receiver. It was so over-gassed that it was painful to shoot. When I finally determined what the problem was, I ran across some cat with the same problem who drilled his gas AK block and threaded it to accept different sizes of carburetor jets to vent excess gas. It apparently worked like a champ for him, so I decided to go the same route. Those darned gas blocks are pretty hard, and I had a devil of a time drilling it. That should have been my clue to go extra slow and lube the tap well, but I rushed the job and broke the tap in the hole. I decided to shoot it as it was, and I'll be danged if the flutes on the tap didn't offer just about the right amount of venting. It's now a much more pleasant gun to shoot!
You could drill a really small hole in the gas block to intersect the bore between the barrel gas port and the gas tube. It would be trial and error, though, to find the correct size, but it is an inexpensive alternative. However, if you drilled too big, you might have to break a tap in the hole to partially plug it. [/sarcasm]
You could drill a really small hole in the gas block to intersect the bore between the barrel gas port and the gas tube. It would be trial and error, though, to find the correct size, but it is an inexpensive alternative. However, if you drilled too big, you might have to break a tap in the hole to partially plug it. [/sarcasm]