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New Frontier Armory Polymer Lower

Discussion in 'Rifle Country' started by Dr.Rob, Feb 9, 2012.

  1. Dr.Rob

    Dr.Rob Moderator Staff Member

    Ok it's the big day, I picked it up this morning in a no-frills UPS box wrapped in bubblewrap. No manual (not really expected). It feels light, handy. The 6 position stock clicks positively, the graphics are attractive and the finish is VERY similar to a Mag-Pul magazine. The lower feels really solid but as you can see, no ability to swap out the trigger gaurd.

    I was not expecting the hammer to be made of polymer and if there is a weak point I expect it to be this. With rimfire will there be enough mass to do the deed? With centerfire? How will it stand up to hitting firing pins. The Hammer is marked ACCU-GROUP Made in USA.

    Attached Files:

  2. allaroundhunter

    allaroundhunter Well-Known Member

    What upper are you planning to top it off with?
  3. Dr.Rob

    Dr.Rob Moderator Staff Member

    The magazine button is oversized and surrounded by a raised rail so you can feel it in the dark, it's also raised on the opposite side.

    The stock has this marker's mark if anyone recognizes it, please chime in. The buffer tube is aluminum, the stock looks like the the same sort of plastic as my Colt 6920.

    Buffer is a std (Not H marked) carbine buffer.

    Attached Files:

  4. Dr.Rob

    Dr.Rob Moderator Staff Member

    Pistol grip is attached with a hex screw head and lock washer, otherwise looks standard. (Plan on getting a Hogue Monogrip like my Colt).

    There are some casting burrs here and there on the internals but not where they matter. The safety did feel pretty stiff the first few times I worked it on and off. Could be I was polishing a few burrs there.

    Magazines from Colt, Mag-Pul and C-Products all fit well, with the Mag-Pul seeming to lock in the most solidly.

    Attached Files:

  5. Dr.Rob

    Dr.Rob Moderator Staff Member

    CMMG 22 LR mags fit just fine as well.

    But when fitting Colt and CMMG I had some issues.

    First off the pivot pin came out and the detent (plastic as well) went missing for a half an hour. That took some doing to put back in place but we'll call that one my fault.

    The spacers in the rear half of the stock are right at the same width as my Colt's locking lug, and ditto for the CMMG upper. Thing is the Colt's lug is tapered more, so it fit easier. No when I say EASIER, understand that it took some gentle finagling to get either one to fit. I did not alter any part in any way. No sanding, no tricks. This MIGHT NOT be something you want to do at a range bench out doors. It's a TIGHT fit with either upper, but with the Colt upper, the rear pin will NOT push in witout a gentle tap from the right side and a little oil. After being on and off the CMMG upper a few times the pins were easier to push (finger pressure only), it's getting the upper SEATED on the Poly lower that took a little "English" to get right. The Colt upper slides into place easier, but as I said that rear pin doesn't want to go the last 1/8 without a 'tap' (I used a rubber toe stop, didn't take much.)

    Side by side you can see the internal differences, Colt on right, NFA on the left. Plastic at the magwell looks thicker than the aluminum of the Colt (I can measure if anyone wants). The Colt has more material behind the hammer thats reamed out for the locking lug recess. The NFA design is open. Again you can see how the sides are built up to form 'tabs' that surround the rear locking lug.

    With the Colt upper fitted theres no rattle at all.. it's a tighter fit than my 6920 lower.

    Attached Files:

    Last edited: Feb 9, 2012
  6. Dr.Rob

    Dr.Rob Moderator Staff Member

    Here is a comparison of the NFA lower with my CMMG 22 cal upper next to my Colt 6920.

    There is a significant difference in weight, the NFA lower definitely saves you something there.

    So far I am pleased with New Frontier's lower. My total price, including shipping and transfer fee/background check was just over $132.

    Total to build my CMMG 22 rifle with 3 magazines, triangle handguards, UTG carry handle, and UTG 4x scope and New Frontier complete poly lower to date: $585

    I had some gift credit on Amazon so I have a monogrip and a rubber US butt pad on the way for a total (to me) of $7.

    Total build: $592

    Up next: shooting tests with the .22 cal upper.

    Attached Files:

    Last edited: Feb 10, 2012
  7. jpwilly

    jpwilly Well-Known Member

    Thanks for putting this info out there. I'm getting ready to purchase one of these lowers to mess around with. Thanks agian.
  8. Tim the student

    Tim the student Well-Known Member

    Thanks for the review.
  9. ifit

    ifit Well-Known Member

    thanks Dr.Rob for the review and pics:cool: will be placing an order for one tomorrow:)
  10. madcratebuilder

    madcratebuilder Well-Known Member


    Good review, thanks.
  11. taliv

    taliv Moderator

    nice review so far! looking forward to hearing how well the stuff goes together and what that trigger is like and how it holds up after a few thousand rounds.
  12. Robert

    Robert Moderator

    Dr. Rob,
    You should run this thing at the matches this summer and see what it will really do. Not trying to break it of course, but give it a good running.
  13. Dr.Rob

    Dr.Rob Moderator Staff Member

    I'm holding off my thoughts on the trigger until I've fired it for real. And Gus, I plan on using the lower at Pueblo West for at least some of the matches.
  14. BoilerUP

    BoilerUP Well-Known Member

    Very interested in your thoughts once you shoot the thing a couple times...

    Also curious which model CMMG upper you have.
  15. Tim the student

    Tim the student Well-Known Member

    Me too. Please go and put a couple thousand rounds through it this week. :neener:
  16. kozak6

    kozak6 Well-Known Member

    Accu-Group is Plum Crazy's fire control group. Hmm.
  17. RhinoDefense

    RhinoDefense Well-Known Member

    Yep. Expect the same results. Looks like a Plum Crazy lower with a marking variance.

    Be sure to post how this holds up under heavy use. I'm curious.
  18. Dr.Rob

    Dr.Rob Moderator Staff Member

    It's a CMMG Evolution M4 upper 16 inch WASP coated, with front sight. 22LR no bolt hold open.

    I might not get to shoot it until Friday. Will keep you all appraised.
    Last edited: Feb 15, 2012
  19. Hacker15E

    Hacker15E Well-Known Member

    New Frontier Armory has been on this site and others while developing it -- there's no reason to believe that it's a PCF lower with new markings:

  20. ns66

    ns66 Well-Known Member

    plastic hammer?
    i have bushmaster carbon upper and lower, 5lb without mag, the hammer and trigger steel

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