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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. SB Tactical FS1913 Folding Brace
    SB Tactical FS1913 Folding Brace
    $159.99
    Out of stock
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  3. Aero Precision AR-15 M4E1 Stripped Lower Receiver - FDE
    Aero Precision AR-15 M4E1 Stripped Lower Receiver - FDE
    $159.99
    Out of stock
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  5. SB Tactical TF1913 Stabilizing Brace - Black
    SB Tactical TF1913 Stabilizing Brace - Black
    $159.99
    Out of stock
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  7. SB Tactical AKTF Pistol Stabilizing Brace
    SB Tactical AKTF Pistol Stabilizing Brace
    $159.99
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  10. Surefire Socom 5.56mm 4-Prong Flash Hider - 1/2x28
    Surefire Socom 5.56mm 4-Prong Flash Hider - 1/2x28
    $152.00
    Out of stock
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  13. Surefire Flash Hider - SF3P-556-1/2-28
    Surefire Flash Hider - SF3P-556-1/2-28
    $152.00
    Out of stock
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Barrel Length
  1. 9" 1 item
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  3. 12.5" 1 item
  4. 13.9" 1 item
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  1. Receiver Parts 4 items
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