Critique my AR build!

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  • cotman68

    Active Member
    Feb 21, 2010
    797
    Stewartstown, Pa
    Pics soon! All my stuff will be here by Saturday so will have it built by the evening.

    Only change I have made is the rail. I'm now going with the BCM MCMR Mlok 13inch. The Midwest industries ultra light is going on my fiance's rifle.


    I have one of those rails. Really tight , keep the fiancée’s hair dryer handy


    Sent from my iPhone using Tapatalk
     

    SkiPatrolDude

    Ultimate Member
    MDS Supporter
    Oct 24, 2017
    3,377
    Timonium-Lutherville
    I have one of those rails. Really tight , keep the fiancée’s hair dryer handy


    Sent from my iPhone using Tapatalk

    TIGHT IS RIGHT!

    Everything BCM i've encountered has been super tight. Even getting the split pin (not a roll pin) into the forward assist was a huge PITA. I hate split pins...
     

    outrider58

    Eats Bacon Raw
    MDS Supporter
    Jul 29, 2014
    49,995

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    SkiPatrolDude

    Ultimate Member
    MDS Supporter
    Oct 24, 2017
    3,377
    Timonium-Lutherville
    They come with an LPK.

    Yep. As per above, takedown pins come with an LPK.

    I had a spare set of JP oversized pins, so decided to use them to get a slightly tighter upper/lower fit. YMMV. With these, the front pin needs a little help with a punch, but the rear slides right out with a gentle thumb press.

    Ended up needing JP double oversized (.250) pins for an ill fitting receiver set that I did prior. Tight fit now, though.

    Pics of complete build coming soon. Just waiting on an Arisaka Mlok mount for my Surefire Scout and BUIS.
     

    SkiPatrolDude

    Ultimate Member
    MDS Supporter
    Oct 24, 2017
    3,377
    Timonium-Lutherville
    Last few parts finally came in and finished her up yesterday.

    Put about 300 rounds through it yesterday and very happy with the result. Getting about 4:00 ejection unsuppressed, and 2:30 suppressed. Less than one inch POI shift at 100 yards.

    Wasn’t shooting for accuracy but was getting about 2-2.5 moa with xm855, so we’ll see what she’ll do with better ammo. Didn’t have a very good set up, only a bag rest.
     

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    DaemonAssassin

    Why should we Free BSD?
    Jun 14, 2012
    23,994
    Political refugee in WV
    Last few parts finally came in and finished her up yesterday.

    Put about 300 rounds through it yesterday and very happy with the result. Getting about 4:00 ejection unsuppressed, and 2:30 suppressed. Less than one inch POI shift at 100 yards.

    Wasn’t shooting for accuracy but was getting about 2-2.5 moa with xm855, so we’ll see what she’ll do with better ammo. Didn’t have a very good set up, only a bag rest.

    Needs more cowbell.
     

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