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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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  1. Rainier Arms Ultramatch MOD2 .308 Barrel - 18"
    Rainier Arms Ultramatch MOD2 .308 Barrel - 18"
    $450.00
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  2. Rainier Arms Ultramatch MOD2 6.5 Creedmoor Barrel - 18"
    Rainier Arms Ultramatch MOD2 6.5 Creedmoor Barrel - 18"
    $450.00
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  3. Rainier Arms Ultramatch MOD2 .308 Barrel - 20"
    Rainier Arms Ultramatch MOD2 .308 Barrel - 20"
    $450.00
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  4. Rainier Arms Ultramatch MOD2 .308 Barrel - 16"
    Rainier Arms Ultramatch MOD2 .308 Barrel - 16"
    $450.00
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  5. Rainier Arms Ultramatch MOD2 6.5 Creedmoor Barrel - 22"
    Rainier Arms Ultramatch MOD2 6.5 Creedmoor Barrel - 22"
    $450.00
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  6. Rainier Arms Ultramatch MOD2 .308 Barrel - 24"
    Rainier Arms Ultramatch MOD2 .308 Barrel - 24"
    $450.00
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  13. KNS Precision AR15/M16 Gen 2 Spade Grip with Carbine Stock Assembly
    KNS Precision AR15/M16 Gen 2 Spade Grip with Carbine Stock Assembly
    $450.00
    Out of stock
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  14. Knight's Armament Company (KAC) RAS AR-15 Free Float QUAD Handguard - 12"
    Knight's Armament Company (KAC) RAS AR-15 Free Float QUAD Handguard - 12"
    $450.00
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  15. Lantac N15 Raven Billet Receiver Set
    Lantac N15 Raven Billet Receiver Set
    $458.99
    Out of stock
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  16. Noveske SPR 5.56MM Barrel - 18
    Noveske SPR 5.56MM Barrel - 18
    $451.25
    Out of stock
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Barrel Length
  1. 8.3" 1 item
  2. 10.5" 1 item
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