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. Armaspec Sound Mitigation Buffer Gen 3
    Armaspec Sound Mitigation Buffer Gen 3
  2. Blitzkrieg Components 9mm Hydraulic Buffer
    Blitzkrieg Components 9mm Hydraulic Buffer
    $134.99
  3. Armaspec SMB - Sound Mitigation Buffer - H Buffer
    Armaspec SMB - Sound Mitigation Buffer - H Buffer
    $44.99
  4. Milspec/GI Carbine Buffer - 3.0oz
    Milspec/GI Carbine Buffer - 3.0oz
    $12.00
  5. KynSHOT RB5000 Marksman Recoil Buffer - AR15 Carbine
    KynSHOT RB5000 Marksman Recoil Buffer - AR15 Carbine
    $124.95
  6. Griffin Armament Suppressor Optimized Buffer - Gen 2
    Griffin Armament Suppressor Optimized Buffer - Gen 2
    $52.00
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