AK (Arsenal 106UR) Short Barreled Rifle in .300 AAC BLK
At least for me there is something oddly poetic about a modern AK-47 derivative converted to use modern version of the original AK-47 round, the .300 AAC BLK. This Arsenal SLR-106U was rechambered by Troy Sellars, the owner of In Range C2 Inc. of Kodak, TN. With the AAC 762-SDN-6 suppressor it functions perfectly with supersonic or subsonic ammunition.
Photos from John Hollister at AAC Blog.
You can go 220 grain subsonic to 125 grain supersonic for different applications only by changing out a magazine… what’s not to love?
Axel Nordberg I would like to know where you get your information that 5.45×39 is more expensive than 5.56. At AIM Surplus a 2000 round case of 5.56 Wolf 55grn FMJ’s is $359 while 2 spam cans of 5.45×39 (totalling 2160 rounds) is only $259.90.
“Rather get it 7.62×39 alot more economical and you can get 7.62mm suppressed ammo alot cheaper than this wildcat caliber.”
Actually subsonic 7.62x39mm is much more expensive than 300 AAC BLACKOUT. And this is not a wildcat – this is a SAAMI standard cartridge.
Yes, “David” and “Some Guy”, Axel likened this situation to a hypothetical one where the owner of a firearm chooses to convert it from a normal, widely used, cheaper caliber, to a new, rare, expensive one that is not at all ballistically different, but is also without much advantage that the first round did not have, making ammo costs and obtainment much more difficult for no real purpose. He was making commentary on how he feels that the caliber swap is unnecessary given the lack of advantage and extra cost of the .300 BLK.
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Love those mags. What brand are they?
I love it!
Also, I believe that 300 BLK works ballistically better in short bbls than 7.62×39 in the same length bbls.
Axel:
The pressure increase from the suppressor has nothing to do with driving the bullet, and everything to do with cycling the action.
A subsonic with only 500lbs/ft of energy will likely struggle to eject and chamber a new round. The suppressor keeps the pressure in the system higher for longer, meaning it cycles better.
“only the 5.45 russian is super expensive and hard to find.”
BZZZT, not correct, unless you mean “in a situation where” – because it’s cheap.
This is about flexibility – subsonic and supersonic – and I was wondering about a conversion of this type 10 years ago in the .300 Whisper.
You can go 220 grain subsonic to 125 grain supersonic for different applications only by changing out a magazine… what’s not to love?
@chucky
Pretty sure smith and wesson made one, dont qoute me though, id like to have an ar in either that or the 5.7 just for the heck of it
Axel,
5.45 AR-15 clones are somewhat popular because the 5.45 is indeed easy and cheap to find. As I understand it, it works a little better in shorter barrels than the 5.56, too. I suggest you check out Smith & Wesson’s 5.45×39 ar-15. I think LWRC did a 5.45, and so did Spikes Tactical. 14 cents per round is pretty cheap in my opinion, even if it is surplus. Look around, you can still find spam cans of this stuff and buy it by the crate.
I don’t see the point of the 300 blackout for the AK-action unless you just really neeeeeed to have a very very quiet AK. For me anyway, it seems superfluous. Eccentric shooters who like to reload and have some extra cash burning a hole in their pocket would like this, I think.
Rather get it 7.62×39 alot more economical and you can get 7.62mm suppressed ammo alot cheaper than this wildcat caliber.
“ecurb, yes! The suppressor could be helping with that (keeping pressure higher for longer)”
I don’t get it, either the bullet is traveling at just below the speed of sound or it isn’t regardless of the pressure that drives it.
I don’t see the point in this, but it does look awesome and if you want to, why not.
Just a little backwards, this is like converting a .223 AR to 5.45 russian, only the 5.45 russian is super expensive and hard to find.
LMAO!!! It was my understanding that 300 BLK was created to duplicate 7.62×39 ballistics when shot supersonic…. Don’t get me wrong I like it it just seems… redundant to me.
*shrugs*
I suppoes the Russians did it first when they made their AK to fire 5.45×39. Would be funny if they made an AR to fire it too.
This gun makes me want to move somewhere where I can own a suppressor.
How much for the Conversion?
So, will this actually cycle using subsonic with an energy of 500 foot-pounds?
ecurb, yes! The suppressor could be helping with that (keeping pressure higher for longer)