Ar 15 uppers

[Mopar383]

I'm thinking about building a 7.62x39 upper. I have a sks but I have 10s of thousands of rounds and years with my M16 and only a couple hundred rounds and a few hours with the sks. My question is what parts are interchangeable. The bare upper i can see being the same but i couldn't find a 7.62 specific bolt/carrier group. Is the only thing different the barrel or am i missing something on this. Also what other upper have been played with. Im trying to bulk up on ammo so 7.62 just seems logical.

[ajc281509]

This is the schematic from DPMS for their 7.62x39 AR.

http://www.dpmsinc.com/support/schematics/Schematics/762Carrier.htm


EDIT: pops is correct the Bolt carrier is the same, the bolt is different..

http://www.dpmsinc.com/support/schematics/Schematics/16A2762Upper.htm

I guess my first question is why not just buy a quality AK? I mean the AR is awesome but if you are wanting to shoot 7.62x39 the AK seems logical. As far as the "training" on the SKS, use those 10s of thousands of rounds and shoot the piss out of it to become more proficient..

[popsgunner]

Barrel, and bolt and mags, that should be it. upper uses same bolt carrier and upper, gas system and such. Easy to do, somewhat difficult to gather together.

[Mopar383]

I dont have that kind of rounds now. Ive fired 10s of thousands off 556 through M16s/M4s while in the Corps.Never actully purchasing the ammo it seems that 7.62 is the way to go. I just want to stick with my known platform (M4/AR/M16). Aks are more of a point and pray it hits weapon. Though i really dont know what kind of yardage advantage i should expect over a ak. Ak are good for 200 maybe 300 yds. Can i expect to get 500 yds out of a 7.62 like i do the 5.56

[ajc281509]

I misread your post   , now I understand...

I don't have any real experience with a 7.62x39 AR platform, however if I am really understanding this correctly...you want to stock up on ammo in this case 7.62x39 because you have an SKS and you want to build an AR in the caliber? Is that right? 

[Mopar383]

i have both sks and AR (5.56). I just perfer the ar platform and willing to dump the SKS(although i dont think i would). I do have a few rounds of both ammo.

[ajc281509]

Well with that being said...If it were me I would only stock up on 5.56. I would also sell the sks in order to buy more ammo or upgrade the AR in some way.

ETA: Is your main goal here to have two rifles in the same caliber?

[Mopar383]

i would prefer to have both 5.56 and 7.62.

[Grumblecakes]

if you want a 7.62 ar platform why not go with an ar10?  granted you will be spending more money to build a lower and an upper. or is it a function of ammo cost?

[Mopar383]

Ive thought about the ar10 but 7.62x39 is a more common round in case of a foreign attack situation. 

[High Wall]

I've been shooting 7.62 x 39 through a 20" Colt AR for about 10 years now.  I put together a 16" 7.62 x 39 AR last summer.  I got an E.R. Shaw barrel and 7.62 bolt and A2 type flash hider from M1 Sales.  Those three things plus the magazines are about all that is specific to the 7.62 in the AR.  The Shaw barrel came with an extension with extended feed ramps, so I used a CMT upper receiver with the corresponding cuts.  I used an adjustable gas tube as the 7.62 in the 16" barrel tends to be over-gassed.  Everything else, lower included, is standard AR15.

I use CProducts 10 and 30 round magazines.  The CProduct 30 round 7.62 magazine saga is a long one, but they work.  I have 10 that work flawlessly.  I got some of the first ones available, and had to return them as they wouldn't feed if they had more than 7 or 8 rounds in them.  CProducts finally got their shit together and perfected the design and production.  CProducts being how they are, you might still get a bad one these days and have to send it back, but the design works. 

I didn't expect much from the Shaw barrel, but it has turned out to be an excellent shooter.  It can beat MOA with handloads.  A few months ago, I started playing around with cast bullets in it with good success.  I won't say how well it shoots cast cuz people will just think I am BSing.

One thing I haven't done is fired any Wolf or other steel-cased ammo liberated from deceased Chicom soldiers through it, so I can't tell you how that would work out over the long haul.  I've heard steel cased ammo tends to break the extractors in the 7.62 AR, but I've heard a lot of things about these that I found simply isn't so.  A lot of people will bad mouth the combination without trying it themselves, just repeating stuff they've heard.  It's a very fun gun.

[Joey]

Been thinking the same - 7.62x39 AR-SBR Platform.

PWS 7" 7.62 Diablo, Gemtech Sandstorm, with C-Products mags is where I'm leaning towards.

Here's my thoughts, run normal 7.62x39 ammo for your normal plinking uses.
But then load a 7.62 Thumper (.300 Whisper type load, only in a 7.62x39 case) for your subsonic suppressed stuff?

So then you get a gun that sounds like a whisper, but your not stuck with a whisper chamber and limited ammo selection.
You can run normal ammo for normal shooting, and subs for ultra-quiet shooting.


Just my thoughts on the subject

[Nealio]

This is funny cuz I was just pricing out 7.62 AR uppers myself this week..

I also have a SKS I shortened, with a Tapco stock, Choate optics rail, and I hand stoned and polished the bolt and bolt carrier.  It runs great and is a fun shooter, but I want to do some 3 gun and I think an AR style rifle would be better.  At only $.22 a round, you can't reload .223 hardly for what you can buy 7.62x39 for.
Also I find it odd people suggest an AR10 to those looking for a 7.62x39.  Its like suggesting a .38 Super to a guy who wants a 9mm handgun....  .308 (7.62 NATO) has way more energy/recoil and the main thing is the ammo is WAY more expensive (4x as much?). 

High Wall: what ammo do you normally shoot in yours if its not steel cased?  I'd really like to check this rig out sometime.

 - Nealio

[High Wall]

High Wall: what ammo do you normally shoot in yours if its not steel cased?  I'd really like to check this rig out sometime.

 - Nealio

I reload using mostly Winchester brass.  I have some R-P brass with the small primer pocket I use for cast loads, and some Federal.  For bullets, I use the Hornady and Winchester 123 gr SPs.  I've used their FMJs but the spire points are more accurate.  For cast loads, I use the bullet from the Lee 155 gr mold designed by C.E. Harris for the 7.62x 39.  Both the Colt and the Shaw barrels slug out at just over .310".

[Mopar383]

How about this upper. I wouldnt need a silencer. [ Attachment: You are not allowed to view attachments ]

[Nealio]

How about this upper. I wouldnt need a silencer. [ Attachment: You are not allowed to view attachments ]

Still illegal in Kalifornia

[Mopar383]

Still illegal in Kalifornia

Well not really i have a disability that prevents me from shooting a bow or a gun with a significant kick for that matter. So they are legal with a doctors permit. and since there are so many docs handing out marijuana prescriptions in ca it shouldn't be to hard for anyone to complain about some shoulder pain.

[Nealio]

People on Midway seem to think the Olympic A3 7.62x39 upper is pretty good and (should) come with a C-Products mag:

http://www.midwayusa.com/viewproduct/?productnumber=196823

[shotokan94]

Primary Weapons 7.62X39 is really good, and comes with a C-products mag. Just saying.

[Nealio]

Damn, $1500 bones!

[ronbuick]

I have the Bushmaster upper that I bough complete a few months back that I put on my AR15 lower with Cproducts mags, this set-up
works fine, some of the Eastbloc ammo works better than others in my case, I so far stay away from the Wolf military brand in the
brown type box, I tried several other brands of eastbloc with no problems so far at all, not as accurate as the .223-5.56 at the 100
yd range, so when I go to the range I just swap out the uppers, if we do another group purchase on a bare lower than I will put that
on the 7.62 upper, HTH.

Ron

[shotokan94]

Yeah, 1500 bones that stays in the valley. Or 1400 for the 7.62 MK107, also in 7.62X39. All in a 7" barrel that gets 1 MOA. Or you can spend less $$ in another state.

[ajc281509]

Yeah, 1500 bones that stays in the valley. Or 1400 for the 7.62 MK107, also in 7.62X39. All in a 7" barrel that gets 1 MOA. Or you can spend less $$ in another state.

and more than likely for an inferior product. Let's be honest here the "just as good as" mentality is crap. You get what you pay for...buy quality shit. If you can't afford to buy quality equipment hold off and save up the money, if you are too hard headed and refuse to pay that kind of money then I wish you luck on your cheaper product that is "just as good as" the expensive stuff I know is going to hold zero and go BOOM everytime.

I'm throwing my two cents in on this whole thread....why buy a 7.62x39 AR in the first place? Just buy a nice AK or "settle" for a quality AR in a more proven caliber. 5.56 is a known performer in the platform, sure some of you are going to argue that 5.56 doesn't have the stopping power, if you are that concerned buy some 75-77 gr ammo and be happy. Buying an AR in 7.62x39 is like buying a monster truck with a Civic engine, it just doesn't make sense, it's an abomination that should be done away with. You want cheaper ammo? Steal cased, Russian crap 7.62x39 most likely won't function correctly in the platform! If the gun isn't going to run whatever you feed it what's the point?

One company makes the magazines! ONE DAMN COMPANY!!! Let's call this a clue! Why put all your eggs in one basket? Look at the AR in 5.56, Pmags, Lancer, H&K, GI issue, their are dozens of options. Look at AKs, again dozens of options.

This thread is full of FAIL.

[carharttfarmer]

what's the point?

This thread is full of FAIL.

nope full of fun step out alittle experiment not everthing has to be high dollar beat your life on it

if cheap ammos the point go with a 5.45x39 and and get the surplus while its cheap

[popsgunner]

anybody got or tried one of the 7.62x25 uppers... even cheaper ammo. +1 carhartfarmer.