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. Midwest Industries MCX Virtus M-LOK Handguard
    Midwest Industries MCX Virtus M-LOK Handguard
  2. Angstadt Arms Ultralight M-LOK Handguard
    Angstadt Arms Ultralight M-LOK Handguard
  3. Drew Meyer Defense Trifold M-LOK Rail Cover - Black
    Drew Meyer Defense Trifold M-LOK Rail Cover - Black
    $21.25
  4. Knight's Armament Company (KAC) M-LOK Index Stop
    Knight's Armament Company (KAC) M-LOK Index Stop
    $62.37
  5. Noveske Barricade Support M-LOK Direct Attach
    Noveske Barricade Support M-LOK Direct Attach
    $52.25
  6. Noveske AR-15 N4 5.56 NATO SPR Upper - 18"
    Noveske AR-15 N4 5.56 NATO SPR Upper - 18"
    $1,543.75
  7. Noveske Reversible M-LOK Handstop - Black
    Noveske Reversible M-LOK Handstop - Black
    $55.00
  8. Bravo Company MFG (BCM) Raider M10 M-LOK Handguard - 10"
    Bravo Company MFG (BCM) Raider M10 M-LOK Handguard - 10"
    $239.00
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