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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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  3. Aero Precision AR-10 BREACH Ambi Charging Handle w/ Large Lever
    Aero Precision AR-10 BREACH Ambi Charging Handle w/ Large Lever
    $104.99
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  4. Forward Controls Design URF-F AR-15 Forged Upper Receiver
    Forward Controls Design URF-F AR-15 Forged Upper Receiver
    $104.50
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  7. Raidworx Mach 15 Ambidextrous Charging Handle
    Raidworx Mach 15 Ambidextrous Charging Handle
    $109.95
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  10. Brugger & Thomet TP9-N Foregrip
    Brugger & Thomet TP9-N Foregrip
    $100.00
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  14. Precision Armament M41 Severe-Duty Muzzle Brake .308/7.62
    Precision Armament M41 Severe-Duty Muzzle Brake .308/7.62
    $104.49 - $113.99
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  15. Aero Precision AR15 Enhanced Carbine Buffer Tube Kit - H2
    Aero Precision AR15 Enhanced Carbine Buffer Tube Kit - H2
    $104.99
    Out of stock
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  16. Angstadt Arms 9mm AR-15 Barrel - 6"
    Angstadt Arms 9mm AR-15 Barrel - 6"
    $108.00
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