raineirarms

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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  1. Silencerco ASR .30 Caliber Muzzle Brake- 1/2x28
    Silencerco ASR .30 Caliber Muzzle Brake- 1/2x28
    $79.90
  2. Griffin Armament EZ Brake .30Cal - 1/2x28
    Griffin Armament EZ Brake .30Cal - 1/2x28
    $79.95
  3. Griffin Armament EZ Brake .30 - 5/8x24
    Griffin Armament EZ Brake .30 - 5/8x24
    $79.95
  4. Aeroknox Butterfly Brake .223/5.56
    Aeroknox Butterfly Brake .223/5.56
    $90.00
  5. Griffin Armament EZ Brake .223/5.56 - 1/2x28
    Griffin Armament EZ Brake .223/5.56 - 1/2x28
    $79.95
  6. SilencerCo ASR Muzzle Brake
    SilencerCo ASR Muzzle Brake
  7. Surefire PROCOMP Muzzle Brake for AR10/LR308 7.62mm
    Surefire PROCOMP Muzzle Brake for AR10/LR308 7.62mm
    $89.00
  8. Faxon Firearms GUNNER 5.56 3-Port Muzzle Brake
    Faxon Firearms GUNNER 5.56 3-Port Muzzle Brake
    $55.19
  9. Silencerco ASR .458 Caliber Muzzle Brake- 5/8x32
    Silencerco ASR .458 Caliber Muzzle Brake- 5/8x32
    $79.90
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