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CMMG vs. Rock River 308

Discussion in 'Rifle Country' started by Dean1818, Jun 18, 2012.


CMMG or Rock River

Poll closed Jul 18, 2012.
  1. CMMG 308

    16 vote(s)
  2. Rock River 308

    25 vote(s)
  1. Dean1818

    Dean1818 Well-Known Member

    Thinking about going the 308 AR route

    Of these 2, which would you choose and why?
  2. RCArms.com

    RCArms.com Well-Known Member

    I voted Rock River because I like the ability to use FAL mags.

    I have one in transit to me at this time to replace my Armaliite AR-10T Carbine. Armalite is quite nice and light, but uses unique mags that I don't want to stock up on.

  3. HankB

    HankB Well-Known Member

    I used a CMMG upper on my last build which appears well made and has so far been 100% reliable and accurate, so I'm pretty sure they make good stuff.

    On the other hand, that same rifle has an RRA lower parts kit (including 2-stage trigger) and that seems well made and has also been 100% reliable.
  4. Zane

    Zane Well-Known Member

    I'd choose an AR10 pattern rifle that uses SR-25/DPMS magazines. So, of the two, I'd go with CMMG, however there are other choices.
  5. Welding Rod

    Welding Rod Well-Known Member

    I like RRA ARs, but I handled a RRA 308 a few years ago and the mag release seemed a little sketchy to me. I don't remember the details other than thinking if I bought a 308 AR it probably wouldn't be a RRA for that reason.

    I also bought a CMMG 556 upper that had significant build/quality issues. CMMG made it right, but due to the number of problems it had I wouldn't personally role the dice again with them.

    All that said I would look to some other make. DPMS has never impressed me so personally I would take a closer look at Armalite if looking in that general price range. Or if stepping up was an option, I would consider something in the big buck 308 AR class.
  6. TexasPatriot.308

    TexasPatriot.308 Well-Known Member

    I own some Armalite AR10s and one Bushmaster BAR10, would like to buy a RRA LR308, just cant hardly find them. I got a RRA AR15 (CAR15) I really like.
  7. NG VI

    NG VI Well-Known Member

    I got a bargain bin AR-15 from CMMG, and I was really happy with it.

    I like to stick with the people I know.
  8. madcratebuilder

    madcratebuilder Well-Known Member

    FAL mags are less unique than M14/AR10 mags? The ArmaLite Gen II mags are within a few dollars of what surplus FAL mags cost, if you can find them. The SR-25 mag is without doubt the Defacto standard now that ArmaLite is onboard with the new SR-25 magazine AR-10A.

    The CMMG is priced like the DPMS rifles, but it has a 6061t6 billet aluminum upper vs the extruded 6000 series DPMS upper. The CMMG MK-3 WASP is maybe the best bang for the buck of all the 7.62 AR's. $1400+/- buys a PRS, floated hand guard with removable rails, two stage trigger, , fluted 18" coated barrel and it uses SR-25 mags. The CMMG MK3 SST stainless steel 16” is under $1200 and has MOE butt and floated hand guard.
    Last edited: Jun 19, 2012
  9. NG VI

    NG VI Well-Known Member

    Yeah I really like CMMG. Their business model seems to be to make really solid rifles, run a small enough profit margin that you can't assess what they're selling without coming up positive on the value balance, and just keep cranking them out.

    And they look like a fun company to work for. As I get older that matters more and more to me in my buying decisions.
  10. Tex4426

    Tex4426 Well-Known Member

    I love rock river...there quality is second to none...i cany speak for ther 308 but the pred pursuit shoots under 3/4 consistantly
  11. DirtyHarry31

    DirtyHarry31 Well-Known Member

    I have owned several RRA rifles & that be my choice. They have always made a quality AR. Just my .02
  12. ms6852

    ms6852 Well-Known Member

    I like RRA they make a solid and reliable AR
  13. RCArms.com

    RCArms.com Well-Known Member

  14. Casefull

    Casefull Well-Known Member

    I have shot an rra 308 w standard 16 barrel for 3 years and it is easy to shoot 1moa with the rifle. Once you have a rra rifle you will find most your other ar's seem sloppy and loose. There 2 stage match triggers are hard to beat also.
  15. Salty1

    Salty1 Well-Known Member

    I was in the same situation, really like RRA and CMMG, as mentioned it is hard to beat CMMG's quality for the price. My research brought me down a few different roads and I ended up buying a FNAR which arrived yesterday, hopefully I will get optics mounted this week and be able to shoot it over the weekend and see if it is truly a MOA rifle as they claim.
  16. Dean1818

    Dean1818 Well-Known Member

    Where do you still see them at $1200?

    CDNN doesnt offer them anymore
  17. henschman

    henschman Well-Known Member

    I say CMMG, because of the cheaper/more common mags -- it takes P-mags, while the RRA takes FAL mags, which are hard to find and many are not in great shape.

    Also, the CMMG has a nitrided bore and chamber, while the RRA is just plain old chrome moly. Also the RRA has a proprietary barrel nut, which means if you want a free-float handguard, you are limited just to what RRA sells, whereas the CMMG is DPMS/KAC pattern, which there are a ton of aftermarket handguards for.
  18. Badlander

    Badlander Well-Known Member

    Since when are FAL mags hard to find. A friend bought A new RRA LAR 10 at A recent gun show. We found several dealers at the show that had mags and picked up 6 of them for A reasonable price.
    I have not shot the gun but it looks good to me!
  19. Dean1818

    Dean1818 Well-Known Member

    I looked at the FNAR as well, but i worried that the barrel might heat up and string since it looks to be a BAR hunting rifle upgraded

    Is that accurate?
  20. Dean1818

    Dean1818 Well-Known Member

    I am leaning toward the CMMG, because:

    It has a SS barrel

    It uses Pmags

    Weighs 3/4 lb less

    It looks to be $150 less

    Still not 100 percent sure..... Have wait till my bonus is paid

    I would love to get some complete side by side accuracy

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