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
Shop By
Now Shopping by
Shopping Options
- Caliber 5.56 NATO Remove This Item
- Barrel Length 13.7" Remove This Item
- Gas System Length Mid Remove This Item
- Mount M-LOK Remove This Item
- Price $1,560.00 - $1,569.99 Remove This Item
- Rail Length 15" Remove This Item
- Twist Rate 1:7 Remove This Item
My Wish List