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Thread: Ar-15 Lower Question
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April 14th, 2009, 07:12 PM #1
Ar-15 Lower Question
If a lower is 5.56 will that be all it can ever be? Ive noticed "convention kits" to pistol rounds and .22. I'm wanting to jump to 7.62 WITHOUT buying a totally new rifle. Anything i can do?
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April 14th, 2009, 07:21 PM #2
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April 14th, 2009, 07:27 PM #3
Re: Ar-15 Lower Question
The 5.56 lower can be adapted to several other calibers including the 7.62x39 but you have to have the correct upper to match your caliber (other than for a .22, then you can use a conversion kit).
Ron USAF Ret E-8 FFL01/SOT3 NRA Benefactor Member
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April 14th, 2009, 08:05 PM #4
Re: Ar-15 Lower Question
Ive known about the upper having to be changed at lest. Sooo basically a 7.62 total upper should work? My .223/5.56 lower will accept 7.62 mags?
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April 14th, 2009, 08:32 PM #5
Re: Ar-15 Lower Question
check out this thread ...
http://forum.pafoa.org/rifles-42/558...-question.html
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April 14th, 2009, 08:43 PM #6Junior Member
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April 14th, 2009, 08:49 PM #7
Re: Ar-15 Lower Question
you can go to 7.62x39, but not 7.62x51 (308) that requires an AR-10 style platform.
and X39 uppers will consistently break bolt lugs off, as the bolt is hogged out too much to accept the larger case head.
I had a Colt x39 upper, and after the 4th bolt broke, i replaced it, and sold it, and used an AK.
add that quality mags are difficult to find... oddly, USA mags suck in EVRYTHING but an AR15 in x39.. thier frankenmags consisted of a AK mag with a straight AR tower spot welded on, and they worked flawlessly.
I've seen uppers for ARs in the following:
.17 Mach IV
204 Ruger
5.45x39
22lr
22mag
222
223
5.7x28mm
30carbine
32acp
357 mag
380
9mm
40SW
41AE
44mag
45acp
458 SOCOM
50AE
50 Beowulf
probably other available no doubt."Oderint Dum Metuant" - BMFH
"Tact is for people not witty enough to use sarcasm"
Note: any whingeing crazy that hits my PM inbox will be deleted without reply
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April 14th, 2009, 08:53 PM #8
Re: Ar-15 Lower Question
Ahh thanks alot for this helpful info every1, now will my lower take a 7.62 mag no mods? Any back round of the rounds mentioned on the threat Mojo posted. Just started getting heavly into rifles with this AR-15. Forgive my lack of adding the x.39
Last edited by Binaryenemy; April 14th, 2009 at 09:14 PM.
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April 14th, 2009, 09:06 PM #9Junior Member
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Re: Ar-15 Lower Question
which 7.62 mag? 308? no, you would need the AR10 lower
458 SOCOM and 6.8 SPC rumored to be requested by the special forces in the sand box...rumored
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