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. JK Armament 155 HD Thread Mount - 1/2x28
    JK Armament 155 HD Thread Mount - 1/2x28
    $90.00
  2. B5 Systems M-LOK Vertical Foregrip - Flecktarn
    B5 Systems M-LOK Vertical Foregrip - Flecktarn
    $27.55
  3. Noveske Reversible M-LOK Handstop - FDE
    Noveske Reversible M-LOK Handstop - FDE
    $55.00
  4. Noveske Reversible M-LOK Handstop
    Noveske Reversible M-LOK Handstop
  5. Magpul DT-PR Carbine Stock Milspec - Black
    Magpul DT-PR Carbine Stock Milspec - Black
    $61.70
  6. Drew Meyer Defense Trifold M-LOK Rail Cover - Black
    Drew Meyer Defense Trifold M-LOK Rail Cover - Black
    $21.25
  7. Hiperfire Xtreme AK Mark-3 Trigger
    Hiperfire Xtreme AK Mark-3 Trigger
    $95.25
  8. Q LLC Cherry Bomb Muzzle Brake 8.6BLK - M18-1.5
    Q LLC Cherry Bomb Muzzle Brake 8.6BLK - M18-1.5
    $90.00
  9. Knight's Armament Company (KAC) M-LOK Index Stop
    Knight's Armament Company (KAC) M-LOK Index Stop
    $62.37
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