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Rifle Parts

Whether you're building a new rifle from scratch or looking to upgrade an existing firearm, our vast selection of rifle parts has everything you are going to need in that journey. At Rainier Arms' selection of rifle parts, you can find a wide variety of products including lower and upper parts, trigger parts, muzzle devices, and many more. 

Explore our selection of high-quality parts coming from various leading manufacturers like Strike Industries, Magpul, BCM, and many more.

Also, don't forget to check our specially-made Rainier Arms barrels for your firearms.

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Items 65-80 of 80

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  1. Hera Arms LC-S Linear Compensator-Small
    Hera Arms LC-S Linear Compensator-Small
    $69.00
  2. Faxon Firearms GUNNER 5.56 3-Port Muzzle Brake
    Faxon Firearms GUNNER 5.56 3-Port Muzzle Brake
    $55.19
  3. Precision Armament - M4-72 Tactical Compensator 5.56mm
    Precision Armament - M4-72 Tactical Compensator 5.56mm
    $85.49
  4. Bravo Company MFG (BCM) Extended M3 5.56 Compensator
    Bravo Company MFG (BCM) Extended M3 5.56 Compensator
    $94.95
  5. Huxwrx Shim Kit
    Huxwrx Shim Kit
  6. JK Armament 155 HD Thread Mount - 1/2x28
    JK Armament 155 HD Thread Mount - 1/2x28
    $90.00
  7. Noveske 3 Lug Adapter 1/2X28
    Noveske 3 Lug Adapter 1/2X28
    $71.25
  8. Noveske Two Port 5.56mm Muzzle Brake - 1/2x28
    Noveske Two Port 5.56mm Muzzle Brake - 1/2x28
    $84.55
  9. Q LLC Cherry Bomb Muzzle Brake
    Q LLC Cherry Bomb Muzzle Brake
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