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Posted: 11/26/2008 3:59:27 PM EDT
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Tried this is another thread with no response... This is probably a better forum for it.
Just took delivery of my new GunPlumber (ARS) AK-47 which has a threaded Tapco slant brake installed. The detent pin only allows it to be indexed with the slant at a 45 degree angle either side from straight up. A post in the other thread confirms to me that this is for right or left hand shooters. My question is, does the slant face toward or away from the shooter's strong hand? I apologize up front for any incorrect terminology used. Cuss at me if you must, I'm the FNG. Thanks for the info. |
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Originally the slant brake was designed for the slant to angle toward the side of the rifle with the charging handle. The AK in full auto tends to rise up and to the right when looking down the barrel. The brake was designed to counter this recoil by forcing the compression of firing up and to the right to try to push the muzzle back down and to the left so that it might stay on target. Make sense?
ARKAR |
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Yes, most are right handed, so it counters the tendency to recoil up and away from the shooter (towards the strong hand). Tilt the slant brake towards the strong hand.
I'm working on shooting left handed (weak side), but I won't change the brake because I'll usually shoot strong handed and if shooting lefty, won't take the time to change the brake. |
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Yes, it makes perfect sense, but... In this thread;
http://www.ar15.com/forums/topic.html?b=4&f=96&t=105810 the manufacturer's rep states that the double notch is there so the "brake can be rotated a few extra degrees so that the slant accommodates left handed shooters". Does the muzzle rise to the right becuase of a design flaw with the AK or because a right handed shooter pushes it right when it rises? If the former is the case I don't see the need for an ambidextrous slant brake. If it's the latter, then common sense tells me that it would rise to the left for a left handed shooter and that's the answer to the question. Not trying to be an anal orifice, just trying to make sure I do this right. Thanks for your help. |
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Quoted:
Yes, most are right handed, so it counters the tendency to recoil up and away from the shooter (towards the strong hand). Tilt the slant brake towards the strong hand. I'm working on shooting left handed (weak side), but I won't change the brake because I'll usually shoot strong handed and if shooting lefty, won't take the time to change the brake. Excellent, that's pretty much what I thought. Thanks for confirming it. BTW, I'm a former New Mexico resident as well. Clovis to be exact. |
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Quoted:
Yes, it makes perfect sense, but... In this thread; http://www.ar15.com/forums/topic.html?b=4&f=96&t=105810 the manufacturer's rep states that the double notch is there so the "brake can be rotated a few extra degrees so that the slant accommodates left handed shooters". Does the muzzle rise to the right becuase of a design flaw with the AK or because a right handed shooter pushes it right when it rises? If the former is the case I don't see the need for an ambidextrous slant brake. If it's the latter, then common sense tells me that it would rise to the left for a left handed shooter and that's the answer to the question. Not trying to be an anal orifice, just trying to make sure I do this right. Thanks for your help. The recoil pushes the shoulder to the rear which causes your body to rotate. If the rifle is against your right shoulder your body and the rifle rotate to the right. If the rifle is on the left shoulder the body and rifle rotate to the left. The device doesn't seem to me to do anything when firing semiauto. The chief LEO here won't sign off on a tax stamp application to let me test if it works when fired FA. 
Try some double and triple taps with and without it and find out whether it makes a difference to you. |
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Not to change the subjuct on the origional post........but it is a slant break question as well. Didnt see any reason to start a new thread . I got a bulgy that HAD a welded on slant break. After shooting it one day I noticed it all at once just sounded different during each shot/shots. The damn slant break came off and went about ten feet from the gun. I dont realy want to weld that one back on. The barrel isnt threaded. Could a person put a A2 birdcage off of one of my AR's on that if it was rethreaded to 1/2" and bored out the center of the flash hider to accomodate the bigger calliber or would going from a 14mm to a 1/2" weaken the barrel for some reason? Any other sugestions would be nice as well.
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Quoted:
Not to change the subjuct on the origional post........but it is a slant break question as well. Didnt see any reason to start a new thread . I got a bulgy that HAD a welded on slant break. After shooting it one day I noticed it all at once just sounded different during each shot/shots. The damn slant break came off and went about ten feet from the gun. I dont realy want to weld that one back on. The barrel isnt threaded. Could a person put a A2 birdcage off of one of my AR's on that if it was rethreaded to 1/2" and bored out the center of the flash hider to accomodate the bigger calliber or would going from a 14mm to a 1/2" weaken the barrel for some reason? Any other sugestions would be nice as well. I don't see a problem at all, I think this has been done to many AKs of which the barrel threads had been turned-off at the factory. The first WASR-10s that came in had the threads removed from the barrels and a muzzlenut was welded on. I think the method you described was exactly how some of the owner's of those rifles fixed this problem. Seems like someone even produced an adapter to screw on the 1/2" to go back out to 14mm LH after the barrel was threaded to 1/2". Maybe someone who knows more will chime in. ARKAR |
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Quoted:
You could try the AK-74 style muzzle break. I now have them on both of my 47s. If you are interested Cheaper Than Dirt has the Tapco muzzle breaks for the 47 for under 20 Real 74 brakes compensate for the rightward movement also, via offset ports. Some of the cheaper US made copies just have ports that vent gas straight up. If the slant brake has two notches, use the one for left hand shooting. Quoted:
Not to change the subjuct on the origional post........but it is a slant break question as well. Didnt see any reason to start a new thread . I got a bulgy that HAD a welded on slant break. After shooting it one day I noticed it all at once just sounded different during each shot/shots. The damn slant break came off and went about ten feet from the gun. I dont realy want to weld that one back on. The barrel isnt threaded. Could a person put a A2 birdcage off of one of my AR's on that if it was rethreaded to 1/2" and bored out the center of the flash hider to accomodate the bigger calliber or would going from a 14mm to a 1/2" weaken the barrel for some reason? Any other sugestions would be nice as well. That should work. A lot of guys use AR threads for barrels that were turned down below 14x1. A guy over at theakforum.net even makes slant brakes for that thread size. http://www.theakforum.net/phpBB2/viewtopic.php?t=60214 |
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I was at the range today and tried the slant brake in both positions shooting both right and left handed. Didn't make much difference shooting right handed (strong side), but shooting left handed with the brake set for right handed was a huge difference. The muzzle moved way off to the left.
Some of the movement could be due to a lack of muscle memory in controlling a rifle in recoil left handed. This is the first time I've tried shooting a rifle left handed. |
| the right or left hand thing is a myth. It has to do with the RH rotation of the bolt. Regardless of what hand you shoot it with - on full auto or maybe even on rapid fire, the gun has a tendency to climb up and to the right. This was even more so on the AK 47. The AKM added the slant brake and changed the impact of the bolt carrier on the front trunion from the right side to the left side to further counter-balance bolt rotation. |
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