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AR15 help #7147016 04/21/18 01:16 PM
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I have 3 AR15’s in 5.56. I am considering converting one to 7.62x39 for alittle more punch. Would all I need is a new barrel and magazines? I want the conversion to be cheap as possible.

Re: AR15 help [Re: PSHOT] #7147021 04/21/18 01:21 PM
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Barrel and bolt. You'll want quality mags. That's it. Carrier is the same.


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Re: AR15 help [Re: PSHOT] #7147023 04/21/18 01:21 PM
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Need a bolt too.


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Re: AR15 help [Re: PSHOT] #7147050 04/21/18 02:21 PM
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or you can buy my complete upper


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Re: AR15 help [Re: PSHOT] #7147225 04/21/18 06:03 PM
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Thanks for the help

Re: AR15 help [Re: PSHOT] #7147255 04/21/18 06:52 PM
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be sure to get the enhanced firing pin with the bolt, it strikes slightly deeper to bust the hard Russian primers better....

Re: AR15 help [Re: PSHOT] #7149363 04/23/18 10:12 PM
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Also make sure your trigger isn't "light", actually the hammer part, even with an enhanced firing pin you can still get light primer strikes if your hammer spring is too light. It helps to use an extra power hammer spring. Extra insurance to ignite those Russian primers. Just adding on to what has already been mentioned.

Re: AR15 help [Re: PSHOT] #7149456 04/24/18 12:12 AM
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I'd take a look at the 6.5 Grendel.


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Re: AR15 help [Re: PSHOT] #7149508 04/24/18 01:00 AM
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Never shot a 7.62x39 AR or any other non 556 case round that didn’t run like crap out of an AR15 platform.



Originally Posted By: SnakeWrangler
never trust a man that rents pigs....
Re: AR15 help [Re: Koenig] #7149526 04/24/18 01:13 AM
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Originally Posted By: Koenig
Never shot a 7.62x39 AR or any other non 556 case round that didn’t run like crap out of an AR15 platform.

I've built quite a few non 556 and 556 AR15's including 4 7.62x39, no problems as long as the correct parts are used, especially the correct bolts and mags. Actually the only 2 that gave me problems were on 556 cases, a 300 BO and a 556. No problems with 458 socom, 6.8 SPC, 300 OSSM, 22LR, etc.

Re: AR15 help [Re: PSHOT] #7151966 04/25/18 10:20 PM
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300bo and 556 were probably gas problem. The problem I had with them was feeding or lack of.



Originally Posted By: SnakeWrangler
never trust a man that rents pigs....
Re: AR15 help [Re: Koenig] #7152174 04/26/18 01:58 AM
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Originally Posted By: Koenig
300bo and 556 were probably gas problem. The problem I had with them was feeding or lack of.

300BO gas port in barrel was too small, drilled it larger and works fine now.
556 was feed ramp issues, still not feeding reliably ...need to work on it some more

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