ok, so i built a nice 556 ar no problem. shot sub moa with my eotech all day for under 700 bucks. now my second build im having a few problems. heres a list of parts i have. (im going all out on this one)
ar performance 7.62x39 16inch barrel with mid length gas system
ar performance bolt
noveske matched upper and lower
colt lpk
colt bolt carrier
giessel trigger
magpul ubr stock
yhm diamond rifle length free float for end
yhm lo-pro gas block
mid length gas tube
ill have cactus weapons systems put it all together for me and true up my barrel and receiver and set my head space (they put together my last ar and do a awesome job. my secret to sub moa)
ok so getting to my problem is i dont know what buffer to use!
id like to keep all my little parts colt if i can. money is not a concern anymore as im trying to build my dream gun. id like to do some 3gun/hunting/plinking with this one so it has to be 110% reliable and id like the best buffer for the job.
also like any tips/pointer yall could throw my way. would sure be helpful. thanks -zach
My honest opinion? If you want 7.62x39 get an AK. I’m sure they’re out there but I’ve never seen a reliable AR in 7.62x39. Lots of magazine issues. Lots of sub-par bolts floating around. Basically, a lot of BS for nothing. The juice is not worth the squeeze.
You want an AR with similar ballistic performance? Go with .300 BLK. Similar ballistic performance to 7.62x39 but you can use standard AR magazines and a standard AR bolt. The only difference is the barrel and extension. Do some research on it and I think you’ll agree it is a better choice.
First off, before you continue to read my post you should really just use the search feature that this site offers.
That being said, why exactly do you want a 7.62x39 AR? Not to say that it’s a inherently bad round, but it isn’t the best choice of cartridge for an AR due to the fact that it has a tapered case, making it less reliable. (One of the main reasons the .300 Blackout was created)
If you really want a “110% reliable” 16" barreled, x39 rifle, your best bet is a quality AK (see Arsenal)
Now as for your parts list, you did well for the most part. Except you should consider a good quality rail that doesn’t weigh a ton, then you most likely wont need that heavy ass (and expen$ive) stock to balance out the weapon.
That is honestly an AWFUL idea. The noveske pig is designed for rifles with super sort barrels, high velocity rounds, with huge muzzle blast. A 16" 7.62x39 is none of those.
i dont want 300 blk or 6.5 or any of those rounds i want 7.62x39
i dont want another ak, if i need one i can grab the one in my truck or the couple i have in my safe. or even my mini30 would do the trick
i like 7.62x39 and it ballistics better than 556. nothing against 556 but im a 30 cal kinda guy
im not to concerned with the tapered case since i have a mid length gas tube it should let enough pressure out to ensure reliable operation.
all the parts on my list i already have, just need a buffer! not worried about the rail or stock weight. if it proves to heavy to carry then i dont need to be carrying around a rifle lol.
the mag problems havent scared me off ill figure something out. also working with a buddy to stick a ar mag ontop of a ak 90 round drum just for funzies. kinda like a frankenmag on roids.
as for the bolt im hopeing this ar performance 7.62x39 bolt will take care of that, if not then i will look elsewhere.
and to answer why i want a 7.62x39 ar, well why not! its my favorite round coming out of one of my favorite rifles. and the challenges of the build only make it more fun and worthwhile.
and still no answer to what buffer i need lol. i would like to hear from someone who actually has a 7.62x39ar
If you really want one, and really want it “110% reliable”, I hope you have magical powers. No matter who builds it, and with what parts, the magazine/cartridge geometry issues won’t go away.
IIRC there were some companies making AR lowers that accepted AK mags, which was probably your best bet. However, they seem to all have gone out of business which doesn’t lead me to believe they had much success with their attempts.
i dont know to much magic but my smith sure does. if it gets to out of hand ill just throw a few goats on the alter. iv seen those lowers befor if i could find one id give it a try but im making use of what i got available. and from what i hear mags have improved quite a bit
Alibi…I don’t own a 7.62x39 AR. I just don’t like the problems associated with them. So, you’ve got me there, I guess.
I have, however, been around them plenty. Violent and over-gassed would be my way of describing their function.
Obviously, a heavy buffer is going to help some. If you’re serious about this, a rifle extension / buffer would likely be the best bet. A VLTOR A5 would also be a good idea. Otherwise, an H3 buffer would likely work best if you want a carbine length buffer spring.
But, again, that was only my experience. And I know nothing about the barrel you have selected. You should talk to them about their gas ports. If they’re on the small end of the spectrum, you might get by with a standard carbine buffer. If not (and this is more likely), you will be better served by a heavier buffer.
The reality is that since there’s no standard for 7.62x39 AR’s, you may end up having to do trial and error to determine what buffer works best.
from what i understood from what iv read is the tapered case is a problem because of case expansion in the chamber making it hard to pull out and the taper also makes it tricky in the mags.
-true true, but i can alway swap in something lighter if i want, but im using what i have on hand
Just because Uncle Sam says anything under 16" is “short barreled” doesn’t mean the Noveske Pig is going to be beneficial. Its a bad idea because the pig pretty much only has a benefit when used on less than 11.5" barreled 5.56 carbines. Let alone a slow velocity round that burns its powder fast.
But hey man, you can put what ever the heck you want at the end of your barrel, I’m just stating my humble opinion.
