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Centerfire Rifles - Semiautomatic or Gas Operated Centerfire rifles, carbines and other gas operated rifles.

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  #1  
Old 06-06-2011, 7:39 AM
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Default can i convert my 556 AR to 762?

i am interested in converting my AR

what exactly do i need to purchase? Can i just swap barrels?

what are Pros N Cons?
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  #2  
Old 06-06-2011, 7:54 AM
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No, a AR-10 is for .308/7.62.
But there are other great calibers that can fit in an AR-15 magazine. (6.8,7.62X39,6.5,etc.)
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  #3  
Old 06-06-2011, 8:18 AM
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Specifically, try and fit a .308 round in the mag well of your AR. Then you tell US if you can just swap barrels.

Then try and fit that .308 through the ejection port, or onto the bolt face and let us know if those parts are the same too.
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  #4  
Old 06-06-2011, 8:20 AM
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7.62x39 or 7.62x51?
for one you'll need a new upper, and as others said, for the other you'll need a different rifle
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  #5  
Old 06-06-2011, 8:51 AM
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Quote:
Originally Posted by Stooman View Post
7.62x39 or 7.62x51?
for one you'll need a new upper, and as others said, for the other you'll need a different rifle
762x39
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  #6  
Old 06-06-2011, 9:05 AM
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Well since you're just a goldmine of information,

you need a new upper. You need new mags.

Asked. Answered. /Thread
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  #7  
Old 06-06-2011, 9:09 AM
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Originally Posted by JT1989 View Post
Well since you're just a goldmine of information,

you need a new upper. You need new mags.

Asked. Answered. /Thread
hey would i just be able to swap barrels?
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  #8  
Old 06-06-2011, 9:19 AM
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Quote:
Originally Posted by MUKAK View Post
hey would i just be able to swap barrels?
Wow



If so, then yes. You can just swap barrels. Try it and let us know how it goes.

If you can read the post you quoted, then you have the answer.
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  #9  
Old 06-06-2011, 9:24 AM
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Quote:
Originally Posted by JT1989 View Post
Wow



If so, then yes. You can just swap barrels. Try it and let us know how it goes.

If you can read the post you quoted, then you have the answer.
whats wrong with u? PMS? i saw ur reply saying that i need a NEW UPPER... i am new to this gun building stuff so i wanted to know if i can just swap the Barrel out in my existing CMMG GP upper

if my questions get u mad ( while u on PMS ) feel free not to answer
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  #10  
Old 06-06-2011, 9:25 AM
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The 7.62x39 would require a new barrel, a new bolt, and new magazines.

So no, you cannot just swap barrels.
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  #11  
Old 06-06-2011, 9:29 AM
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This thread has soooo much win in it! You need a whole new upper.
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  #12  
Old 06-06-2011, 9:31 AM
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HAHAHAHA, some people get upset at noob questions don't worry. We all had to start somewhere. If your going to 7.62x39 you need a new barrel and bcg. The cost of these and ease of use would be better served in a new complete upper. You will also obviously need new mags.

Pros - cheaper ammo, mostly bi-metal magnetic ammo but you can still find the yugo surplus sometimes. Make sure your local range allows bi-metal.
cons- not as accurate ballistics wise, but still good for plinking or battle rifle.

.223 shoots very straight and 7.62x39 kinda has the ballistics of a football.
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  #13  
Old 06-06-2011, 9:37 AM
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Most of the time the 7.62x39 you need a heavier hammer spring and modified fireing pin as well to ignite the Russian primers.

C-products are the only mags I have heard work reliably but dont know the availability since they were bought out nor if it matters for 10 rds.

Also you need a new bolt and barrel.

Like most have said get a new upper but really Id just get as new AR.
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  #14  
Old 06-06-2011, 10:31 AM
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Quote:
Originally Posted by Wnick308 View Post
No, a AR-10 is for .308/7.62.
But there are other great calibers that can fit in an AR-15 magazine. (6.8,7.62X39,6.5,etc.)
never ehard of 7.62x39, have you?
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  #15  
Old 06-06-2011, 10:35 AM
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Quote:
Originally Posted by FatalKitty View Post
Quote:
Originally Posted by Wnick308 View Post
No, a AR-10 is for .308/7.62.
But there are other great calibers that can fit in an AR-15 magazine. (6.8,7.62X39,6.5,etc.)
never ehard of 7.62x39, have you?
Little bit of fail?

Quote:
Originally Posted by MUKAK View Post
whats wrong with u? PMS? i saw ur reply saying that i need a NEW UPPER... i am new to this gun building stuff so i wanted to know if i can just swap the Barrel out in my existing CMMG GP upper

if my questions get u mad ( while u on PMS ) feel free not to answer
I answered your question. Can I just swap the barrel?
Answer:
No, you need a new upper, and new magazines.


What's wrong with you? Reading comprehension?

Or do you not understand what parts are included in an upper. The minimum parts needed are a new barrel and a new bolt, the carrier may or may not be the same. For the effort, you might as well get a new upper, then have two caliber functionality of your one gun.

Last edited by SixPointEight; 06-06-2011 at 10:38 AM..
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  #16  
Old 06-06-2011, 10:48 AM
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Quote:
Originally Posted by JT1989 View Post
Wow



If so, then yes. You can just swap barrels. Try it and let us know how it goes.

If you can read the post you quoted, then you have the answer.
Oh man I couldn't stop laughing at this post.
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  #17  
Old 06-06-2011, 2:30 PM
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I would just get a new upper and be done with it is there a reason you want a 7.62x39 AR other than paper punching maybe hunting or something? If its just so its cheaper I would look into a 5.45x39 you should also realize that some of the Russian ammo is corrosive so make sure you have some windex handy after a range trip if it is. For the cost you could just buy yourself a new AK and you won't have to hassle finding 7.62x39 AR compatible parts YMMV.
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  #18  
Old 06-06-2011, 2:43 PM
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If you want 7.62x39 then just get an upper, or if you aren't just wanting an AR just get an entire AK for the same price of an Upper for your AR. If you want .308 then you are looking at an entirely new rifle.

Either way looking at spending some dough

Don't mind the folk giving you a hard time, many see the same questions day in and day out so they get rather cynical in their responses. Others forget what it was like to be noobs.
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  #19  
Old 06-06-2011, 2:47 PM
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Quote:
Originally Posted by MUKAK View Post
i am interested in converting my AR

what exactly do i need to purchase? Can i just swap barrels?

what are Pros N Cons?
Actually I think you can do with one receiver and one upper. For the lower, you can try a MGI interchangeable mag well to use AK mags on a AR receiver. We all heard too many stories with bad 7.62X39 magazines for the AR. This would fix that problem, and can easily be converted back to take AR15 magazines.

As for the upper, there are AR monolithic uppers with a supplied barrel nut wrench to swap barrels out on the field. I just can't think for the manufacture that produces them. I'm also thinking FN SCAR for some reasons. You'll also need to swap out the bolt each time you swap out the barrel.

This can be costly but it's the best of both worlds.
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Last edited by Capita159; 06-06-2011 at 2:49 PM.. Reason: grammar
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  #20  
Old 06-06-2011, 3:02 PM
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proabably cheaper to get an AK then you will have both.
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  #21  
Old 06-06-2011, 3:14 PM
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I agree. Instead of trying to convert your AR just buy an AK probably less expensive in the long run and AKs were made to run 7.62x39. ARs weren't.
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  #22  
Old 06-06-2011, 3:53 PM
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here's all you need

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  #23  
Old 06-06-2011, 4:32 PM
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Quote:
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here's all you need

go post elsewhere... u just wasted 10 sec of ur time POSTING
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  #24  
Old 06-06-2011, 6:55 PM
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Mukak, It's cheaper to get the complete upper. Diff. gun altogether. I have both the 7.62x39 and 7.62x51.

Here are my 308
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  #25  
Old 06-06-2011, 7:24 PM
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for 7.62x39 = whole new upper receiver and mags. i thought about doing it once just because i wanted diversity and something "new and cool" but i realized i will just spend that money on upgrading my current AR even more and get more ammo also.
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  #26  
Old 06-06-2011, 7:31 PM
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Quote:
Originally Posted by JT1989 View Post
Little bit of fail?



I answered your question. Can I just swap the barrel?
Answer:
No, you need a new upper, and new magazines.


What's wrong with you? Reading comprehension?

Or do you not understand what parts are included in an upper. The minimum parts needed are a new barrel and a new bolt, the carrier may or may not be the same. For the effort, you might as well get a new upper, then have two caliber functionality of your one gun.
my bad LOL - meant to quote OP
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Old 06-06-2011, 7:42 PM
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You can also get a Mini-30 (7.62x39). I have one and also an AR. I like the AR better, more accurate and lighter. The mini is a pretty good rifle. It shoots Wolf ammo all day long, just as long as you clean it between range outings.
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  #28  
Old 06-06-2011, 7:53 PM
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You will need a new barrel, new bolt, New XS buffer spring and heavier buffer. 124 gr 7.62 x 39 is a lot heavier than a 55gr 223. When I got my AR it would not cycle at all. The lower was "multi-caliber" but set up for 223. It wouldn't cycle 100% until I replaced the buffer with a Spike's Tactical buffer and a Wolff Extra Strength buffer spring. I also replaced the extractor spring with a Wolff Extra Strength extractor spring.
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  #29  
Old 06-06-2011, 11:45 PM
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Quote:
Originally Posted by Capita159 View Post
Actually I think you can do with one receiver and one upper. For the lower, you can try a MGI interchangeable mag well to use AK mags on a AR receiver. We all heard too many stories with bad 7.62X39 magazines for the AR. This would fix that problem, and can easily be converted back to take AR15 magazines.

As for the upper, there are AR monolithic uppers with a supplied barrel nut wrench to swap barrels out on the field. I just can't think for the manufacture that produces them. I'm also thinking FN SCAR for some reasons. You'll also need to swap out the bolt each time you swap out the barrel.

This can be costly but it's the best of both worlds.
I don't normally get excited over AR's but that thing is pretty freakin cool. I like the changeable mag wells so you can run AK mags when using an AK round. Now I just need to think of a reason not go out and buy one lol.
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  #30  
Old 06-07-2011, 6:23 AM
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here ya go. a fellow calgunner has one for sale .

http://www.calguns.net/calgunforum/s...d.php?t=441960
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  #31  
Old 06-07-2011, 1:29 PM
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Need ammo to be cheaper , but this looks like it's going to stick.

http://www.ar15.com/forums/topic.htm...f=124&t=527489

http://www.ar15.com/forums/topic.htm...f=124&t=538510

added link

http://www.m4carbine.net/showthread.php?t=63569

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  #32  
Old 06-07-2011, 2:39 PM
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Quote:
Originally Posted by MUKAK View Post
go post elsewhere... u just wasted 10 sec of ur time POSTING
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Old 06-07-2011, 4:05 PM
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probably pee'd in his little girl undies at the thought of having to look first ask later
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Old 06-07-2011, 4:59 PM
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I have this conversion and I love it. The 7.62x39 round is way more satisfying to shoot at the range then 5.56. It's bigger, heavier and cheaper, what more could you want. Even the "nice" ammo is about the same price as the "ok" ammo in 5.56. Just make sure you consistently clean the rifle after each range session and sometimes the mags can be problematic. I got ahold of the 30 rounders from Cproducts and it works perfect. Blocked off of course. And the Wolf spring helps alot.
Here's pics of mine. *Vanessa*
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  #35  
Old 06-07-2011, 5:12 PM
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probably pee'd in his little girl undies at the thought of having to look first ask later
ur MOTHER is a little girl
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  #36  
Old 06-07-2011, 9:33 PM
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ur MOTHER is a little girl
This is a good way to make friends.
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  #37  
Old 06-07-2011, 9:57 PM
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To the op simple answer is no... It's not going to happen.
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  #38  
Old 06-07-2011, 10:02 PM
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wai u post lyke wetard? u r need yoose propuur aynglish n trai teh gewgle.
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  #39  
Old 06-07-2011, 10:04 PM
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It's possible. Franklin armory is working on it.

http://www.calguns.net/calgunforum/s...d.php?t=438323
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  #40  
Old 06-07-2011, 10:09 PM
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OP, buy a new upper, that way you'll have both 5.56 and 7.62x39.


Quote:
Originally Posted by Don29palms View Post
I agree. Instead of trying to convert your AR just buy an AK probably less expensive in the long run and AKs were made to run 7.62x39. ARs weren't.
Oh, they're not as cheap as they used to be.

Option 1. Wasr - Usually hit n miss
Option 2. Saiga - You still need to spend cash to make it look like the usual AK(convert).

Don't get me wrong, AK's are great but good AK's don't come cheap anymore.
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