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Thread: Help is need with an Upgrade Project to convert a A2 CAR to a Flatop

  1. #11
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    Quote Originally Posted by markm View Post
    You can't do that anyway... The gas port is drilled after TDC is determined by the final position of the Barrel Extension. Changing extensions would put the gas port somewhere else.

    To make this work you'd spend more than the cost of a good upper half... BCM, DD, etc.
    Right. But would it be possible to just grind some feedramps into the existing barrel extension with some careful dremel work?

  2. #12
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    Have you considered just selling that upper and getting a 16" upper in the config you want?

  3. #13
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    Quote Originally Posted by Col_Crocs View Post
    Have you considered just selling that upper and getting a 16" upper in the config you want?
    I have but this was the original upper for this carbine and holds lots of good memories of a buddy that is no longer here. I currently have 2 lowers but 4 uppers and I am working on a special project a SPR MK12 style rifle that I can use for 3 gun matches. I like to DIY so I try to get as much knowledge from people that know the subject that I bounce ideas and with their help I choose the parts run them by a couple of buddies then if I have not made any mistakes order the parts and have an assembling party.
    Si Vis Pacem, Para Bellum.
    |SA Custom Shop 1911-A1 Loaded,(MEU SOC) Mil-Spec|Sig 1911 TacOps&1911 22LR|XDM9 5.25|Glock 22&19|HK USP 45 Comp & USC 45ACP|Ruger KP97, 3 10/22, Mini-30lTaurus PT92AFD & PT-140lColt King Cobra 4inchlBushmaster Magpul CAR-15, Spikes Tactical Lower/Colt 16” HBAR 7.62x39 Tactical, Spikes Tactical/Custom 24” Bull Barrel Sniperl Mossberg Custom 590A1, 500 Blackwater Breacher, 500 Persuader, 24” Slug Gunl
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  4. #14
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    just buy a flattop without the ramps.

  5. #15
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    Quote Originally Posted by elephantrider View Post
    Right. But would it be possible to just grind some feedramps into the existing barrel extension with some careful dremel work?
    Lot's of things are possible. Far less are advisable.

  6. #16
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    Cool

    Quote Originally Posted by elephantrider View Post
    Right. But would it be possible to just grind some feedramps into the existing barrel extension with some careful dremel work?
    Back away from the Dremel!

    Bill Tidler Jr.
    **************

    ...We have long maintained that the only accessories that a 1911 needs are a trigger you can manage, sights that you can see, and a dehorning job. That still goes.
    ~Jeff Cooper

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