AR15.Com Archives
 5.56 conversion to 7.62?
High_Speed  [Member]
2/5/2007 6:14:36 PM EST
Hi all. I'm new here. I just recently purchased a new ar-15 doublestar carbine. Now having used the M16a2 in the Army Guard, I'm fairly familiar with the ar design. But I'm curious of one thing. I'm thinking I would like to try converting to 7.62. Here's my question. Do I need a new upper AND lower? Or could I just have a complete upper (full assembly) that I could put on top of my current lower (with a different mag, of course)? Would I be better off just buying another rifle in 7.62?
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Gregory_K  [Member]
2/6/2007 1:59:31 AM EST
you need a new rifle. 7.62 will not fit in 5.56 magwell.
mr_wilson  [Team Member]
2/6/2007 2:02:10 AM EST
Suggest you take a look at the AR Variant forum as well as AR10 forum, paying close attention to the "tacked" information threads atop these forums as they will get you up to speed.

mike
Dave_A  [Team Member]
2/6/2007 2:07:14 AM EST

Originally Posted By High_Speed:
Hi all. I'm new here. I just recently purchased a new ar-15 doublestar carbine. Now having used the M16a2 in the Army Guard, I'm fairly familiar with the ar design. But I'm curious of one thing. I'm thinking I would like to try converting to 7.62. Here's my question. Do I need a new upper AND lower? Or could I just have a complete upper (full assembly) that I could put on top of my current lower (with a different mag, of course)? Would I be better off just buying another rifle in 7.62?


7.62x39 (Aka 'The AK round') will work - you just need an upper... Why one would shoot x39 out of an AR, is beyond me (except in those strange states where .223 is illegal for deer)... But folks do it, and like it (then again folks shoot - and like - the 30-30, so to each their own)...

7.62 NATO will not (too long - you need an AR-10 platform weapon for this (and other large) cartridges)...
texashark  [Team Member]
2/6/2007 2:07:52 AM EST
If you mean 7.62x39 you would need a new upper and magazine only, the lower you have should work.
High_Speed  [Member]
2/6/2007 2:43:07 AM EST
Hey, thanks all for the responses and the proper direction. Sounds like a good reason to build my first rifle from the bench up.
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