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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- Barrel Length 16" Remove This Item
Caliber
Category
Gas System Length
Manufacturer
- Aero Precision 1 item
- Angstadt Arms 1 item
- Ballistic Advantage 5 items
- Bootleg 1 item
- Boss Barrels 5 items
- Bravo Company MFG (BCM) 1 item
- Christensen Arms 1 item
- Daniel Defense 3 items
- Faxon Firearms 8 items
- Geissele 1 item
- Lewis Machine & Tool (LMT) 2 items
- Magpul Industries 2 items
- Noveske 1 item
- Precision Armament 1 item
- Primary Weapon Systems 1 item
- R&D Precision 1 item
- Rainier Arms, LLC 34 items
- Sons of Liberty Gun Works 3 items
- VLTOR 4 items
Platform
Product Type
- AR-10/LR308 Barrel 11 items
- AR-15 Barrel 40 items
- AR-15 Complete Upper Receiver 5 items
- AR-15 Partial Upper Receiver 5 items
- AR-15 Stripped Upper Receiver 1 item
- AR-9 Upper Receiver 1 item
- Bolt-Action Barrel 5 items
- Buffer Kit 1 item
- Buffer Tube 1 item
- Flash Hider 2 items
- Muzzle Brake 1 item
- Parts Kit 1 item
- Stock 2 items
Rail Length
Thread Pitch
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