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.
Dark mode is
We can't find products matching the selection.
Shop By
Now Shopping by
Shopping Options
- Manufacturer Bravo Company MFG (BCM) Remove This Item
Category
Product Type
- Angled Grip 2 items
- AR-15 Charging Handle 2 items
- AR-15 Partial Upper Receiver 3 items
- AR-15 Handguard 5 items
- AR-15 Stripped Upper Receiver 1 item
- Bolt Carrier Group 1 item
- Buffer 1 item
- Buffer Kit 1 item
- Buffer Tube 1 item
- Charging Handle 2 items
- Compensator 8 items
- End Plate 1 item
- Flash Hider 1 item
- Gas Block 2 items
- Handguard 1 item
- Lower Parts Kit 1 item
- Pistol Grip 5 items
- Rail Adapter 1 item
- Rail Panel 4 items
- Stock 4 items
- Trigger 1 item
- Trigger Guard 1 item
- Vertical Grip 1 item
My Wish List