Bernie Lomax
New member
I just found some sort of copper filings or shavings on the brake of my AK-74. It's not fouling, but actual particles of copper that I can wipe off with my finger. Is this normal?
So how does that happen? Just curious.It's entirely normal for the AK-74 to get copper deposits or flakes on the muzzle brake.
This has a lot to do with the brake's unique design.
It's entirely normal for the AK-74 to get copper deposits or flakes on the muzzle brake.
This has a lot to do with the brake's unique design.
Cool--thanks for that.You seldom see this except with the AK-74 and that's because of the unique muzzle brake that catches tiny flakes.
"It's an aftermarket brake, though, not the same type as the stock '74 brake".
In that case you could have a brake with the exit hole slightly too small, or the brake may not be aligned with the bore and the bullet is striking it.
Try running a snug fitting .22 cleaning rod into the barrel from the rear.
As it passes out the muzzle you can usually see any misalignment or if the hole in the brake is too small.
Also look for a wobbling brake.
The AK-74 brake is loose until a few rounds are fired, then it "solders" itself solidly to the threads with carbon buildup to the point where if you don't remove it often for cleaning, you may have great difficulty getting it off at all.
This is why a slightly loose AK-74 factory brake being a little loose is not an issue.
Your problem may be an after market brake that's not well made and is either too lose, the hole is too small, or it just doesn't line up properly.
Mind you, if the bullet did touch the brake, you'd know that instantly when the brake or parts of the brake flew down range.