WTS: BIG PRICE DROP Upper CHF barrel optic C4 rail

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  • southerner985

    sheepdog
    Rating - 100%
    24   0   0
    Jan 20, 2011
    2,131
    48
    Norco
    MAKE CASH OFFER my truck needs work
    725- for all you see
    600 minus BCG
    550 minus BCG, OPTIC, BIUS
    500 minus BCG, OPTIC, BIUS, covers



    has a strike industries king comp, Centurion arms C4 12in rail, magpul mtx covers..
    BCG
    fully machine 4130 steel gas key instead of a MIM key like a majority of manufacturers, and then used grade 8 hardware with proper staking to attach it the a machined channel for proper locating and zero chance of movement. A case hardened 4340 cam pin holds in the shot peened, case hardened 9310, and Nickel Boron coated bolt.
    The bolt is Mil-STD-1816 HPT and MPI tested and includes a crane O-ring on the shot peened case hardened 4340 steel Nickel Boron coated extractor. A milspec firing pin made from centerless ground 8740 steel that is hard chrome coated, takes care of the primer ignition.

    Barrel length 16"
    Hammer Forged Barrel
    "Machine Gun" Steel
    5.56 Nato Chamber
    1 in 7" twist
    Extra-thick Chrome-lined bore and chamber
    A2 profile
    M4 feedramps
    Forged upper
    T-marks
    Barrel: A proprietary blend of Hammer forged chrome molly vanadium made by FN that is referred to as "Machine Gun Steel" by virtue of its use in FN's M249 and M240 weapons. The hammer forging process work hardens the steel, making it more durable. In addition, the chrome process for the bore allows for a lining almost twice as thick as a standard M16 for enhanced durability. Chambered in 5.56 NATO, with a 1/7 twist, M4 barrel extension, and a Mid-length gas system. A2 style profile barrel is Mil-spec phosphate coated, High Pressure tested and Magnetic Particle inspected.

    Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. Featuring machined T marks, and a mil-spec finish
     
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