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. Noveske N4 Recon Gen 4 5.56 NATO Complete Upper - 16" Black
    Noveske N4 Recon Gen 4 5.56 NATO Complete Upper - 16" Black
    $1,496.25
  2. Noveske 3 Lug Adapter 1/2X28
    Noveske 3 Lug Adapter 1/2X28
    $71.25
  3. Noveske AR-15 N4 5.56 NATO SPR Upper - 18"
    Noveske AR-15 N4 5.56 NATO SPR Upper - 18"
    $1,543.75
  4. Noveske Two Port 5.56mm Muzzle Brake - 1/2x28
    Noveske Two Port 5.56mm Muzzle Brake - 1/2x28
    $84.55
  5. Q LLC Cherry Bomb Muzzle Brake
    Q LLC Cherry Bomb Muzzle Brake
  6. Faxon Firearms Gunner 5.56 NATO AR-15 QPQ Barrel - 20"
    Faxon Firearms Gunner 5.56 NATO AR-15 QPQ Barrel - 20"
    $188.60
  7. Fortis MFG RED Brake 5.56mm
    Fortis MFG RED Brake 5.56mm
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