CMMG Mk47 Mutant Expansion: SBR, Pistol, and CA-Compliant Models

1. Barrel is too short for my preference but I would definitely like to shoot one , probably will have a chance to in 2016 , looks like the stuff a lot of my buddies end up buying . I will definitely read more about it soon enough .

2. Too rich for my blood. I built an x39 M4 for $499. Works great, goes bang every time, very accurate. It would be very hard for me to justify an additional $1000 and not be able to use the lower on any other upper.

   Mags are much cheaper than the VEPRs as well.

   But that’s me.

   • I’m getting ready to start my first AR build soon, and I’m looking at 7.62×39 as my first upper. I’ll be spending a little more than $499, but I’m building to my specs with the parts I want, and I’ll still be able to use my lower with any other upper I want to throw on it. I see that as a fair tradeoff for having to buy special magazines.

     • This sounds intriguing … who makes the “special magazines” and approximately how much do they cost? And is your build going to use a gas piston or direct impingement? If direct impingement, what are your thoughts/plans for the excessive fouling inherent with inexpensive Eastern European and Russian ammunition?

       I apologize for all the questions … I really want a rifle in 7.62 x 39mm but I haven’t found a design that I like.

       • Don’t apologize, those are all questions I have and am looking into. To start with, I’m planning on DI, but I don’t tend to fire more than a couple hundred rounds a session and am borderline OCD about cleaning after (my dad’s habits, then the military’s). I’m looking into piston options for later, but I’m looking at piston options for all the uppers I might want now or later. It’s going to be a learning experience all around, but hopefully a (mostly) smooth one.

         C Products makes (made?) the mag I’ve seen most endorsed, around $17 when in stock. AR-Stoner tends to be a close second, Midway has those for $18 right now. Cheaper than my Glock, even before floorplates.

       • Thank you knightofbob. In my mind, $17 to $18 for a 30 round magazine is fine since Magpul AR-15 magazines are almost the same price. Even if you purchase 10 magazines and pay a $3 “premium” if you will, that is a $30 expense. You would save that after shooting about 250 rounds of 7.62 x 39mm ammunition.

         I still want a gas piston rifle. That should seriously reduce how frequently you have to clean the rifle in order for it to continue to be reliable. While frequent cleaning isn’t the end of the world, it is nice to have the option and know that your rifle will reliably put rounds on target (especially if society goes sideways).

3. I’ll keep my eye out for reviews on the shortie version. I’m on the fence about the benefit of x39 out of an AR vs a good AK right now. Are the ergos/less weight really worth shooting x39 out of a DGI platform? What effect does filthy x39 surplus ammo have on a DGI system? AK is a known quantity to me. This is not… yet. And at that price, there are definitely other options… Hmmmm….

   • LeverDude in PA,

     See my comment below touching on some of the same ideas/questions.

     • I’m looking for the same thing. A Piston AR platform, x39, takes AK mags – and is not just a range toy. Even if you take price out of the equation, I haven’t seen what I’m looking for yet. I have some serious hesitation about shooting filthy x39 ammo out of a DGI platform. ARAK 21 is the closest thing yet, but takes those stupid frankenmags (and is CRAZY expensive). Still hard to beat a SLR or SGL at 1k. Stupid reliable. Can run over the thing with a damn truck and leave it sitting in a mud puddle over night and it will still go bang every time.

4. This is probably great, but isn’t 300 blk the real answer to the sbr .30 caliber question? X39 is great and cheap but I think I would stick to 300 black/5.56 AR15 platforms

5. Having An upper only SKU won’t do you much good unless you have a lower designed for 7.62×39. I don’t think a standard AR lower will accept 7.62 x 39 magazines.

6. This is great and all … so when is someone going to make a gas piston pseudo AR type rifle in 7.62 x 39mm that costs closer to $600, shoots 2 moa, and takes AK-47 magazines?

   It seems to me like that rifle would be almost as reliable as an AK-47 and substantially more accurate than an AK-47. It would certainly be more reliable and much CLEANER than an AR-15.

   I would love to purchase such a rifle. More reliable and much cleaner than an AR-15 — and much less expensive to shoot and only slightly less accurate.

   • Yeah, this is basically what I’d be looking for as well – and I’d even be willing to go up to $1200 – IF it took AK mags. While the ARAK-21 in x39 looks pretty cool, it is freaking WAY expensive and only takes those lousy frankenmags. As for the Mk47, I just can’t see running filthy x39 out of a DGI as being a real advantage over AK, or a worthy trade off for a little better ergos and slight weight reduction. Not like they were able to build in a bolt hold open or anything ‘game-changing’ like that. At this point, I’ll just deal with the extra 8 ounces and a right side charging handle and KNOW that it’s going to go bang every time, and put the remaining $1000.00 into ammo.

7. If they took advantage of the MK47 bolt and made a 6.5 Grendel model, I would be tempted to buy one at a reasonable price. The price of the MK47 coupled with two previous bad experiences with CMMG quality control and customer service make me pass on this.

8. Recently, the company enlarged the Mutant line with the introduction of more compact models. In addition to its three original models, CMMG is now also offering the Mk47 Mutant as an AR pistol and short-barreled rifle.

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