Piston Kits

  • OPS-418
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    $299.99

    OPS-418

    OPS-418 16-18" Mid-length barrels up to 1.00" in diameter Works with Free Float hand guards on…

  • OPS-416 OPS-416
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    Osprey Defense

    $299.99
    MSRP $349.99

    OPS-416

    OPS-416 11.5 -16" Carbine barrels up to 1.00" in diameter 5-minute install – The true dr…

  • OPS-420 OPS-420
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    $299.99

    OPS-420

    OPS-420 20 - 24" Rifle-length barrels up to 1.00" in diameter Works with Free Float handguards…