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Thread: Modern Sporter - Build Discussions

  1. #1341
    Super GunNutz Razer's Avatar
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    Has the JP Parts order arrived yet? :D
    Check other started threads for combo deals

  2. #1342
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    Quote Originally Posted by jjuice View Post
    So far..

    Does not fit:
    Geissele handguards ( without mods )
    22LR kits
    Magpul UBR stock, or a2 tubes ( without mods )
    Aero precision dust cover
    Rise armament dust cover
    Magpul BEV block
    Larue triggers, adjustable drop in triggers, hiperfire triggers ( depending on receiver )
    Ergo RH grips
    Wheeler delta block

    Does fit:
    Fortis switch mod2 handguard ( was not perfectly flat with top rail )
    Rise armament RA905 handguard ( very nice )
    BCM KMR-alpha handguard ( very nice, needed to grind dust cover pin on the upper )
    Armaspec spring with A5 tube and 3/4" spacer
    Geissele maritime bolt catch
    Radian talon safety
    Aero forward assist
    The issue with the A2 Tubes was minor and only effected the lowers of 1st production. Corrected on 2nd production but a work around was available for 1st run (discounted JP SCS or a slight machining job to the A2 tube)

    Adjustable triggers such as the TriggerTech ones was an issue with the rear lug on the upper receiver. A solution was found and all FA uppers have this mod completed. I think it was also done to some of the slick sides as well but ATRS will need to confirm that.

  3. #1343
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    What has to be done to Geissele handguards? I have 15" Mk14's waiting

  4. #1344
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    Quote Originally Posted by J.L.C. View Post
    What has to be done to Geissele handguards? I have 15" Mk14's waiting
    I believe you need to remove the alignment tabs as they won’t fit over the receiver.

  5. #1345
    Super GunNutz mileageman's Avatar
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    Quote Originally Posted by jjuice View Post
    So far..

    Does not fit:
    Geissele handguards ( without mods )
    22LR kits - I have a JP Enterprises 22 kit on my slick side upper, required a $40 mod done by ATRS, I have over 500 rounds through it now
    Magpul UBR stock, or a2 tubes ( without mods )
    Aero precision dust cover
    Rise armament dust cover
    Magpul BEV block
    Larue triggers, adjustable drop in triggers, hiperfire triggers ( depending on receiver ) - I have a Geissele National Match in my early lower, requires at standard AR rear pin. In the 2nd batch lower I have a Trigger Tech Diamond. Confirmed Hiperifre doesn't work without having to grind down the back of the trigger.
    Ergo RH grips
    Wheeler delta block

    Does fit:
    Fortis switch mod2 handguard ( was not perfectly flat with top rail )
    Rise armament RA905 handguard ( very nice )
    BCM KMR-alpha handguard ( very nice, needed to grind dust cover pin on the upper )
    Armaspec spring with A5 tube and 3/4" spacer
    Geissele maritime bolt catch
    Radian talon safety
    Aero forward assist
    98% of parts fit. The problem is there is just such a huge variation in AR15 parts. I've had to modify parts to fit other billet receiver sets in the past, not a big deal.

  6. #1346
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    Quote Originally Posted by mileageman View Post
    98% of parts fit. The problem is there is just such a huge variation in AR15 parts. I've had to modify parts to fit other billet receiver sets in the past, not a big deal.
    Yep I have the JP kit as well. Very nice.

    Mods go without saying. If theres a will, theres a way. A few of my buddies were waiting for me to finish so they could get a feedback of the "Easy-button" parts. No doubt there are folks on here who appreciate it as well.

    Nice to hear about the triggertech diamond. I see in the pics its a tight package. Would you recommend it over some other triggers you've tried? im thinking of getting a rise/lantac drop in.

  7. #1347
    CGN Ultra frequent flyer onetwentyish's Avatar
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    Quote Originally Posted by J.L.C. View Post
    What has to be done to Geissele handguards? I have 15" Mk14's waiting
    Just typical anti-rotation tab fitment.
    "I dont usually bring targets im more of a dirt shooter." -daniel_250r
    I am the "small fringe minority" with "unacceptable" views.
    CCFR 🍁 CSSA

  8. #1348
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    Shave it at an angle, paint it, but don’t use the the set screw though, it’ll damage the upper!
    Last edited by PinaKaleada; 09-28-2019 at 01:51 AM.
    I want you to be pleased with your purchase, so do not hesitate one bit to ask questions before purchase! If we do decide to go forward with payment, I assume that you are satisfied with all info provided before payment. This is a polite as-is disclaimer.

    I ship at least once a week on my day off.

  9. #1349
    Newbie hardcorehenry's Avatar
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    Just curious why won't the aero precision dust work?

  10. #1350
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    Quote Originally Posted by hardcorehenry View Post
    Just curious why won't the aero precision dust work?
    What? I’m using aero and it works.
    I want you to be pleased with your purchase, so do not hesitate one bit to ask questions before purchase! If we do decide to go forward with payment, I assume that you are satisfied with all info provided before payment. This is a polite as-is disclaimer.

    I ship at least once a week on my day off.

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