AK Sponsor
Posted: 12/30/2009 8:02:43 AM EDT
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Here's the deal. I have a Romanian Ak-47 with a properly sized and threaded aftermarket Ak-74 compensator. The first and only time I took it to the range with this configuration I noticed my rounds were impacting way off target. I put the weapon on safe, unloaded it and took off the compensator only to find there was a strange shallow curving mark inside the outer ring. The rounds were striking the break! There is some play in the device just like with the slant cut device that came installed on the weapon so I figured it was not going to be enough to cause this sort of thing. I guess I was wrong. So my questions are these.
Has anyone else had a similar situation happen to them? How can I fix this? I was thinking a washer to tighten up the wobble might work.... Thoughts please. |
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Tighten the brake. Lay a fine file on a solid surface. Hold the brake square to the file. Run it over the file. Go slow and check frequently. Stop as soon as the brake is tight and properly indexes.
Touch up the bare metal with cold blue or whatever you think appropriate. |
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i just had the same issue w/ a romy. tried filing the brake to get it tighter w/ no improvement. mine actually hit the inner ring so hard that it split the zigzag out. i gave up and ordered an 84 style brake. if you have no luck w/ filing i've saw the crush washers that provide tension against the brake not sure where to get them. the problem w/ mine is the sight post is actually uneven so when you tighten the brake it pulls to the right.
good luck. 74 brakes are too loud anyway! LOL |
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Quoted:
Here's the deal. I have a Romanian Ak-47 with a properly sized and threaded aftermarket Ak-74 compensator. The first and only time I took it to the range with this configuration I noticed my rounds were impacting way off target. I put the weapon on safe, unloaded it and took off the compensator only to find there was a strange shallow curving mark inside the outer ring. The rounds were striking the break! There is some play in the device just like with the slant cut device that came installed on the weapon so I figured it was not going to be enough to cause this sort of thing. I guess I was wrong. So my questions are these. Has anyone else had a similar situation happen to them? How can I fix this? I was thinking a washer to tighten up the wobble might work.... Thoughts please. Was the rifle muzzle threaded as it came from the Factory ? If NOT - someone did a lousy job. 
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| If the brake is floppy when up against the sight base/indexed, use some plumbers' Teflon tape on the barrel threads to tighten it up. If it still gets hit by the bullet, you'll have to be content with a thread protector (muzzle nut) on your rifle because the threads are crooked. |
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Loose attachments can be tightened up with metal tape, which works better than Teflon tape because it won't melt.
It sounds to me like the muzzle got threaded incorrectly. My Century AMD was threaded at an angle and caused bullet impact to shift about 4 feet at 50 yards. I had to cut off 1/2" and rethread it. Problem fixed and it still measured 16 1/8" long. |
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Quoted:
Here's the deal. I have a Romanian Ak-47 with a properly sized and threaded aftermarket Ak-74 compensator. The first and only time I took it to the range with this configuration I noticed my rounds were impacting way off target. I put the weapon on safe, unloaded it and took off the compensator only to find there was a strange shallow curving mark inside the outer ring. The rounds were striking the break! There is some play in the device just like with the slant cut device that came installed on the weapon so I figured it was not going to be enough to cause this sort of thing. I guess I was wrong. So my questions are these. Has anyone else had a similar situation happen to them? How can I fix this? I was thinking a washer to tighten up the wobble might work.... Thoughts please. The problem you are having is that the AK74 style recoil compensator on a AK47 rifle has uses 14mm barrel threads and the real AK74 recoil compensator has 24 mm front sight base threads, this causes an alignment problem on @ 15-20 % of the recoil compensators of this style (not all of them, some have no problems). It is a tolerance issue and has to do with conscentricity about the centerline of the bore, it does not happen all of the time. If you fire you AK in a low light condition you will actually see the sparks come out of the rifle (not good). Sometimes if you tighten the recoil compensator until it bottoms out and renotch the hole for the spring loaded pin it may then solve the problem.. We stopped using these AK74 recoil compensators (with 14mm threads) on our production AK47 rifles a few years ago because of this occasional problem (will also cause keyholing for the obvious reasons), although we did believe it improved a reduction in recoil. Now, when we install these now on AK47's we use the AK74 24mm sight base and the real AK74 24mm brake with the lazer cut on the inside for the complete performance improvement. Others may have experienced different results and used different solutions however, these were ours. |
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