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| Rimfire Firearms .22 and .17 HMR Handguns and Rifles |
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#1
10-14-2009, 02:29 PM
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AR15 CMMG Rimfire Conversion Kit
Recently bought a CMMG .22lr rimfire conversion kit along with two ten round magazines (one from CMMG the other from Black Dog). Took it to the range and I had a few issues. The CMMG would not lock into my magwell. It would constantly slide out. The Black Dog magazine would lock in place but would only fire one or two rounds before the bullet fed vertically and jammed the bolt group. The guy in the lane next to me saw that I had problems and mentioned that he had the exact same issue with his CMMG rimfire conversion kit. I was wondering if anyone else had this issue and if they had solutions to remedy this. Otherwise I'm out 200 dollars for a hunk of metal.
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#2
10-14-2009, 03:50 PM
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Where are you located? If you are local, I can help you tune this thing.
__________________
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#3
10-14-2009, 03:57 PM
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#1: load one less round into your mags. I had trouble getting my BDM mags to stay in the magwell until I started down-loading them by one round.
#2: check that the BDM mag's feedlips are clean. If the insides are rough or dirty, they will grab the rim of the round as it is feeding and then pull it vertical as the bolt slams shut.
__________________
"Forget Tibet, free California!" NRA Endowment Life Member / CRPA Life Member
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#4
11-03-2009, 02:27 PM
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I have the same problem with my .22 conversion kit. Doesn't matter if I load 3 or 10 into the magazine. A round will end up stuck in the bolt carrier.
  Any light shed on this would help greatly!
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#5
11-03-2009, 04:33 PM
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Try trimmin the recoil spring 3 coils at a time.
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#7
11-04-2009, 06:16 PM
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Quote:
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#9
11-04-2009, 11:56 PM
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My father and I both have the same kit and mine worked fine and his did this same thing as yours did. I took a look at his and he had not lubed his as I did. I put a good shot of clp, the only spray type stuff I had at the time and the problem went away. I think these kits have to run kind of wet. May help you, worth a try..
__________________
 IF THE BRADY BUNCH WAS AROUND WHEN CAIN KILLED ABEL, THERE WOULD BE A 10DAY WAITING PERIOD ON ROCKS 
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#10
11-04-2009, 11:58 PM
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Get a rounded hammer and lightweight springs.
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