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  1. #1
    Member AbHobbyist's Avatar
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    AbHs Maccabee Defense Large Frame Straight pull Bolt-Action None-Restricted Rifle Build Thread

    Hello there to all the members of GOC!!

    My quest to make ALL the AR related parts useful, my focus has turned to the Large Frame (Read AR-10) parts bin. This new focus has recently lead me to another Canadian manufacture, namely Maccabee Defense Inc and there newly released None-Resisted Rifle receiver set.

    Instead of rehashing all the spec’s I will simply provide a link so that one can do their own research.

    NRR Reciver sets (Click the link if you would like to see more details)

    However the Pro’s of this set for me were that:

    1. Its large frame and will let me use the parts associate with the 308 family of cartridges
    2. It has a proper bolt catch
    3. Its made out of 7075 T6
    4. It has an upper and a lower in the more conventional sense
    5. It’s a none restricted platform and will stay that way as its overall length is greater that 660mm (making many shorter barrels useful again!!)


    The major con’s are as follows:
    1. The upper receiver requires a proprietary sized action rod for barrel installation, which is an additional expense
    2. MacDef is working on solving this Action bar supply issue, as of the writing of this post, they are not available yet
    3. There are no assembly instructions included (The serial number on my set was under 50 so this may change in the future)
    4. tolerances in many areas are unnecessarily tight!!

    That being said if one gets creative you can still assemble them!! With that in mind I thought I might share my experiences in working with my personal NRR build.

    Before we proceed the following are just my thoughts and experiences working with the above mentioned. You may or may not agree with what I have to say, and I welcome comments and criticisms as long as the shared in a constructive well though out manor. With that out of the way lets proceed.............

    Installment #1 - Receiver sets.

    Right now these sets can be hard to come by. However poking around on one of my favorite boards I was able to find a new set for a reasonable price and snapped it up in a heart beat!!

    The following are from when my set just arrived:







    If you have a close look you will see that this set does not use take down pins, Instead it uses “wings” so to speak and the upper “slides onto the lower and is held in place via a hex screw.

    Well I had some time this last weekend and I started to work on assembling my rifle.



    Instalment 2: building the rifle

    There were quite a few challenges, and when I have some more time I will elaborate futher, however suffice it to say while some were more time consuming than others, none were insurmountable.



    Installment 3: the completed rifle

    The following is the first or Mod 0 iteration of my build





    For now specs are as follows:
    Upper
    • Muzzle Treatment - TBD
    • MRA Gas port clamp 0.750 spec (Gen 1)
    • IBI 19" Hunter Profile barrel
    • Aero Precision Atlas R-1 15" M-Lock Rail
    • TNA M-Lok Rail Section
    • ToolCraft 308 Nitrided Bolt Assembly with 308 Cam pin, Firing pin, DPMS Style fixed retaining pin
    • NRR Carrier with side bolt handle
    • NRR Upper receiver


    Lower
    • NRR Lower Receiver
    • Stag fire control group
    • Aero Precision 308 Bolt catch assembly with threaded pin, detent and spring
    • Aero Precision Magazine catch assembly (shoe, spring and button)
    • Selector Assembly (safety, spring and detent)
    • Stag Hogue Pistol Grip (Gen 1)
    • Mil-spec Extended 308 carbine buffer tube with Lock ring and End plate
    • 308 Rifle length buffer spring with standard Ar-15 Carbine buffer
    • Moe Mil-spec Carbine stock Black


    Live fire testing is still pending, however the rifle has passed head space and manual feeding tests, and bolt-hold-open tests with flying colors.

    A word on Mags:

    When you work with MacDef products, one comes to expect tight tolerances. The mag-well dimensions were no exception.

    I went through my entire magazine stash and the only mags that I could get to fit were the excellent IMI polymer mags. (pictured below)



    The fit is tight enough that these will NOT drop free, however that may change with use.



    Any how I have rambled long enough.

    Thank you for taking the time to read my post and I look forward to your constructive comments.

    Until next time.

    Regards

    AbH
    Last edited by AbHobbyist; 06-14-2021 at 03:21 PM. Reason: Typo's fixed

  2. The Following 4 Users Like This Post By AbHobbyist

    Aniest (06-08-2021), Haywire1 (06-09-2021), Lee Enfield (06-08-2021), lone-wolf (06-08-2021)

  3. #2
    Member AbHobbyist's Avatar
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    This spot reserved for future content!!

  4. #3
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    Thank you very much for sharing this, really appreciate it. DId you buy / try the Maple Ridge Armory Maverick kit? There are a lot of videos now available liely as they have had a head start with their Renegade and now Maverick kits. But I am curious as to which one is best for building. Also I have BCL 102 6.5CM upper that can feed the upper parts. I read DPMS parts very where, will BCL 102 barrel and parts fit?

    The Maverick had an issue with AR10 cam pin firing pin retainer does not fit so AR14 retainer I have heard works and magazine catch it quite tight. But overall people seem to be happy about it. Any way looking forward to more inputs and feedback on tis and Maverick.

  5. #4
    Member AbHobbyist's Avatar
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    Jam-Tac

    Well thank you for the kind words!!

    I will do my best to answer your questions in your text

    Quote Originally Posted by JAM-TAC
    Thank you very much for sharing this, really appreciate it.
    You are most welcome!!

    Quote Originally Posted by JAM-TAC
    DId you buy / try the Maple Ridge Armory Maverick kit?
    No I have not worked with the maverick kit, however I have a reasonable amount of experience with the MRA Renegade kit and detailed it HERE (Click the link if you would like to see more details)

    Quote Originally Posted by JAM-TAC

    There are a lot of videos now available liely as they have had a head start with their Renegade and now Maverick kits. But I am curious as to which one is best for building??
    I can' really answer that one as I have only worked with the NRR in the large frame, and have yet to work with the MRA Maverick large frame.

    To this point I have not even shot my NRR so there is no real experience to share there, and anything else would simply be based on personal preference, and that is hardly an objective measure.

    Quote Originally Posted by JAM-TAC
    Also I have BCL 102 6.5CM upper that can feed the upper parts. I read DPMS parts very where, will BCL 102 barrel and parts fit?
    For parts compatibility it would really depend on which BCL your had. The BCL mark7 it totally DPMS patern.

    Previous versions used DPMS compatible BCG's and barrels, with Armalite thread pattern on the receivers and free float tubes. Armalite pattern is not compatible with DPMS pattern, so that pattern would not work with the NRR (which I understand is DPMS compatible)


    Quote Originally Posted by JAM-TAC
    The Maverick had an issue with AR10 cam pin firing pin retainer does not fit so AR14 retainer I have heard works and magazine catch it quite tight. But overall people seem to be happy about it. Any way looking forward to more inputs and feedback on tis and Maverick.
    I was not aware of that!! See you learn something new every day. Sometimes a bolt catch can be stiff, especially in a large frame when the threaded pin is tightened to much. The solution for that is to back it off 1/8-1/4 of a turn and then apply some blue loc-tite to hold it in place. The only down side of this is that one needs to use a heat gun to soften the loc-tite should you want to remove that pin.

    Food for thought........

    regards

    AbH
    Last edited by AbHobbyist; 06-14-2021 at 03:21 PM. Reason: Typo's fixed

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