http://www.rockriverarms.com/images/...ar47_1263v.gif
Anyone play with one yet????its making me debate the whole .300BLK route i was going to take
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http://www.rockriverarms.com/images/...ar47_1263v.gif
Anyone play with one yet????its making me debate the whole .300BLK route i was going to take
Never fly the A model...
The Delta looks pretty sweet... and since I have an AK, with mags, I wouldn't have to go shopping! I'd like to try one of those out! [AR15]
Looks pretty cool! How much are they?
These aren't released to the public yet- (Aug/Sept release date?)
it's not like 7.62x39 hasn't been done in the AR platform.. and what were the major issues?
1) Magazines have issues, because they're made too straight for the tapered cartridge,so they can fit in the magwell (no, not that kind of straight- go back to the "OK, seriously admins, WTF?!?!? " thread)
2) Bolts are weaker, due to larger base diameter of the cartridge
3) DI system clogs with dirty steel-case ammo (which defeats the purpose of an AR over an AK, right?- use quality ammo for accuracy)
Obviously RRA is addressing #1, but are they going to use a hybrid bolt (one based on AR10 diameter, like used on some of the big-bore solutions) to address #2?
#3 could be addressed with a piston-system, or by just not using quality ammo to take advantage of the platform
and a new issue- AK mags aren't designed for bolt hold-open... will they abandon that feature, or find a way that works (likely to not work with EVERY AK mag)?
I like the IDEA, but the execution is where this will make or break it.
They didn't put a piston in there? What kind of buffer does this thing need?
If anyone is actually interested in these let me know and I'll call RRA, I have an account with them.
$1200 and $1475
http://www.rockriverarms.com/index.c...ategory_id=558
Way too much.
If they would make it in 5.45 and it took 74 mags I'd probably be all over it :)
Bet they make a 74 version before to long. Also those are the retail prices they will be a lot less than that.
If I am going to shoot 7.62x39, I am going to pull out the AK-47, which is by far the best weapon system for this cartridge.
If I am going to shoot a subsonic AR-15 SBR, I am going to use 300 Blackout or possibly 9mm.
I don't see a lot of usefulness with an AR-15 chambered in 7.62x39; personally, I would rather cut down the 5.56 brass and use a non-tapered cartridge in this weapon system with the correct dimensions on the bolt carrier. I think it also comes down to the availability of re-loadable brass. In the last five years, I picked up over 4 five gallon buckets of free 5.56 and 223 brass. In that same time, I picked up one 30 cal ammo can of re-loadable 7.62x39 brass.
You guys can't seriously want this thing in your safes, right? This sits right up there with Mossberg's chainsaw grip and 12ga muzzle break.
It's the worst of both platforms rolled into one.
I own several Lar 8 rifles and based on my satisfaction with them I would bet that RRA will have these well functioning and reliable. However as much as I like RRA I don't see the need for a AR in this caliber because the AK is the best rifle for caliber. But if a buyer wants this config I would trust the RRA name if they bought the rifle. RRA did a lot of work on the lar 8 to address what bushmaster could not get right withe fal mag use and bolt problems. RRA I would suspect most likely did the same with this platform.
I would like to try one of these out. I don't know if I would buy one though.
One has to ask themselves what would the benefit be of an AR in 7.62 x 39?
I asked myself and find none...............
Lota of good points in this thread!! Perhaps ill try one first....fwiw I hate the Ak platform so this appealls to me over that for sure....
My question is this: what are you trying to accomplish that 1) 300 Blackout SBR 2) 300 Blackout 16” 3) 6.8spc 16” or 4) 7.62x51 16” can’t provide?
I am not a big fan of the AK either but it is damn effective at what it was designed to do and I have one. 7.62x39 is not that great of cartridge…I don’t think I would try to re-engineer an AR platform to reliably use it when there are three SAAMI cartridge choices along with several other wildcats that will work well. I plan to build option 1 and 4 above. The best part of option 1 and 2 is that I don’t need anything else but a barrel to build it…everything in it is interchangeable with what I have. I don’t have any brass to buy, just cut, size, and trim.
If this were a piston op, and they did something about the horrible mag release placement, and it came with a folding stock option, and maybe a folding front sight (wishful thinking?)... then I might be interested. I like the idea of having a positively solid rail to mount optics on, and the ability to use a high end AR trigger (assuming it uses a standard AR type trigger).
As is, no way in hell I'd spend money on that.
That pretty much sums it up for me- only way I'd do .300BLK is reloading... and if I got a .30cal suppressor, it would but a must-have.
7.62x39 can be cheap, or decently accurate (not both)- with .300BLK the only way to keep cost down is to reload it... with commercial ammo, you take the cheap option out... 7.62x39 can do much of what .300BLK can do (people have done .308 builds, subsonic, etc- just not common), but will be more expensive to do it... (x39 brass & .311 bullets are $$$) handloads in x39 are for accuracy, you can't save money over steel case by reloading.