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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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Items 49-64 of 64

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  2. Rainier Arms Exclusive Spinta Precision .223 Wylde Dissipator Barrel - 16" (Rainier Arms Exclusive)
    Spinta Precision .223 Wylde Dissipator Barrel - 16" (Rainier Arms Exclusive)
    Special Price $149.99 Regular Price $199.99
    Out of stock
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  3. Faxon Firearms Big Gunner .308 WIN, Mid-Length, 4150 QPQ Nitride Barrel - 16"
    Faxon Firearms Big Gunner .308 WIN, Mid-Length, 4150 QPQ Nitride Barrel - 16"
    $219.88
    Out of stock
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  4. Faxon Firearms AR-15 Gunner 6mm ARC 5R Nitride Barrel - 16"
    Faxon Firearms AR-15 Gunner 6mm ARC 5R Nitride Barrel - 16"
    $225.40
    Out of stock
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  5. Faxon Firearms Gunner AR-15 5.56 NATO Barrel w/ Integral 3 Port Brake - 16"
    Faxon Firearms Gunner AR-15 5.56 NATO Barrel w/ Integral 3 Port Brake - 16"
    $239.20
    Out of stock
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  6. Faxon Firearms Tapered AR-15 9MM Barrel w/ Integral Muzzle Brake - 16"
    Faxon Firearms Tapered AR-15 9MM Barrel w/ Integral Muzzle Brake - 16"
    $202.40
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  7. Faxon Firearms AR-15 Match Series .223 Wylde, 416R, QPQ, 5R Flame Barrel - 16
    Faxon Firearms AR-15 Match Series .223 Wylde, 416R, QPQ, 5R Flame Barrel - 16
    $289.80
    Out of stock
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  8. V Seven Weapon Systems 308 WIN Stainless Match Barrel - 16.1"
    V Seven Weapon Systems 308 WIN Stainless Match Barrel - 16.1"
    $583.94
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  9. Faxon Firearms AR-15 Match Series .223 Wylde 416R Nitride Barrel - 16"
    Faxon Firearms AR-15 Match Series .223 Wylde 416R Nitride Barrel - 16"
    $216.20
    Out of stock
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  10. Faxon Firearms PENCIL .308 WIN, Mid-Length, 4150 QPQ Nitride - 16"
    Faxon Firearms PENCIL .308 WIN, Mid-Length, 4150 QPQ Nitride - 16"
    $238.28
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  11. Faxon Firearms PENCIL .308 WIN
    Faxon Firearms PENCIL .308 WIN
    Out of stock
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  12. Ballistic Advantage Premium Series 416R SS 223 Wylde 16" Fluted
    Ballistic Advantage Premium Series 416R SS 223 Wylde 16" Fluted
    $237.50
    Out of stock
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  13. Faxon Firearms .458 Socom 4150 Nitride Gunner Barrel - 16"
    Faxon Firearms .458 Socom 4150 Nitride Gunner Barrel - 16"
    $257.60
    Out of stock
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  14. Noveske Recon Stainless Lo-Pro Gas Block Barrel 5.56 - 16"
    Noveske Recon Stainless Lo-Pro Gas Block Barrel 5.56 - 16"
    $418.00
    Out of stock
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  15. Faxon Firearms AR-15 Gunner 300BLK 4150 QPQ Barrel - 16"
    Faxon Firearms AR-15 Gunner 300BLK 4150 QPQ Barrel - 16"
    $165.30
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Items 49-64 of 64

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  1. Product Type Barrel Remove This Item
  2. Barrel Length 16" Remove This Item
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  1. Full-fluted 4 items
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