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AR markings

legearlegear Member Posts: 6,716
edited March 2013 in General Discussion
Im trying to identify parts on a friends franken AR. Ive checked the web but not getting the answers we are looking for.
Im not looking for who made the forgings, I trying find what gun company milled the parts.

The upper has a square behind the shell deflector, no other markings I can see. Its in the same location the "keyhole" marking is on other uppers.
The barrel is marked L 5.56 NATO 1/7

Any idea who made them. I was kinda hoping some of you may have something with those markings and know the makers?

Thanks
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Comments

  • TxsTxs Member Posts: 17,809 ✭✭✭
    edited November -1
    What's the profile and length?

    Any other markings under the handguards, near the chamber area?
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  • legearlegear Member Posts: 6,716
    edited November -1
    quote:Originally posted by Txs
    What's the profile and length?

    Any other markings under the handguards, near the chamber area?

    16" M4 profile.

    get back to ya on the under handguard part
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  • shilowarshilowar Member Posts: 38,811 ✭✭✭
    edited November -1
    Based on what I read on other forums it could be LMT, they use an L as their markings on uppers and barrels.
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  • legearlegear Member Posts: 6,716
    edited November -1
    quote:Originally posted by shilowar
    Based on what I read on other forums it could be LMT, they use an L as their markings on uppers and barrels.


    Thats all I could find also. The bbl may be but I dont think the upper is LMT.
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  • TxsTxs Member Posts: 17,809 ✭✭✭
    edited November -1
    quote:Originally posted by legear
    The upper has a square behind the shell deflector, no other markings I can see. Its in the same location the "keyhole" marking is on other uppers.If this is what you're talking about it indicates production by BAFE (Brass and Aluminum Forging Enterprises).

    m4build004.jpg

    If so, it could be (at least) either a Rock River, Delton, BCM, CMMG, Fail Zero, CD Defense and Colt upper receiver.
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  • legearlegear Member Posts: 6,716
    edited November -1
    quote:Originally posted by Txs
    quote:Originally posted by legear
    The upper has a square behind the shell deflector, no other markings I can see. Its in the same location the "keyhole" marking is on other uppers.If this is what you're talking about it indicates production by BAFE (Brass and Aluminum Forging Enterprises).

    m4build004.jpg

    If so, it could be (at least) either a Rock River, Delton, BCM, CMMG, Fail Zero, CD Defense and Colt upper receiver.


    Yep thats the mark. If a Colt, it should have an "M4" marked on the front right? Ive read that but dont know if its true.

    And thanks btw.
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  • TxsTxs Member Posts: 17,809 ✭✭✭
    edited November -1
    As for the L indicating LMT, they use this single letter on receiver components but to my knowledge their barrels are magnetic particle inspected and nomenclature stampings begin with MP.

    If it is an LMT, after removing the handguards you would possibly see a letter L stamped on the chamber area.

    Also, open the rifle up and look up into the chamber area of the upper for stampings along the rear edge of the barrel extension. LMT's have an L visible at the 9 o'clock position.
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  • shilowarshilowar Member Posts: 38,811 ✭✭✭
    edited November -1
    My Colt has a C and keyhole on the upper with M4 above the gas tube, no square.
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  • TxsTxs Member Posts: 17,809 ✭✭✭
    edited November -1
    quote:Originally posted by shilowar
    My Colt has a C and keyhole on the upper, no square.
    Colt has used several brands of forgings, including BAFE.

    Yours began life at Cerro Forging.
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