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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Ballistic Advantage Modern Series .308 Win Government AR-10/LR308 Barrel - 12.5"$199.50Out of stock
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Spinta Precision .223 Wylde Dissipator AR-15 Barrel - 16" (Rainier Arms Exclusive)$199.99 $149.99Out of stock
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Rainier Arms / Rellim Arms AR-15 .223 Wylde Take Down Upper Receiver Assembly - 8.5"$1,299.99Out of stock
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Rainier Arms / Rellim Arms AR-15 5.56 NATO Take Down Upper Receiver Assembly - 16"$1,299.99Out of stock