Dark mode is

Credova - Buy Now, Pay Later

The ultimate stop for AR-15 Rifles and AR-15 parts

We are one of the largest online sources for quality AR-10 and AR-15 rifles, parts and accessories. Shop our selection of complete and stripped Uppers and Lowers, find Barrels and Ammo for your firearms, gear yourself up with quality Gear and Apparel. We have it all!

Rainier Arms was started by enthusiasts for enthusiasts. We specialize in high-end AR-15/M16 rifles, parts and accessories. If we won't use it, we won't sell it.

We offer a wide variety of firearms and firearm parts from all your favorite manufacturers. Satisfy your needs from brands such as Glock, SIG, S&W, Primary Arms, Stag Arms, PWS, Rainier Arms and many others. Browse all manufacturers.

Great store for high-end firearms. Very very knowledgeable staff.
Rainier Arms is my go to dealer for high-end AR15 parts and accessories online. They always have a great selection of parts in stock. Many you can't find anywhere else.
Great shop with easy order pick up for locals making online purchases.

Latest Blog Posts

  • Judge Roger Benitez: 9th Circuit Saint?

    District Judge Roger T. Benitez sits on the United States District Court for the Southern District of California - the 9th Circuit. He's probably best known for his opinions against several California gun control laws, though detractors have also decried some ...

    Posted By: rainierblog

    Posted On: March 23 2023

  • AR15: Complete Buyers Guide

    If you’re new to the firearm world, probably you have a lot of questions like which gun to buy, what are the prices, best practices, etc. And the probability you’ve been suggested to buy AR15 is high as it’s one of the most popular firearms among Americ...

    Posted By: rainierblog

    Posted On: March 17 2023

  • What's the best 300BLK barrel length?

    A versatile and well-liked cartridge, the 300 Blackout is also known as the 300 AAC Blackout or 7.62x35mm. It is extremely well suited for hunting, home defense, and suppressed shooting. The performance of the 300 Blackout round depends significantly on the le...

    Posted By: rainierblog

    Posted On: March 14 2023

  • The Complete Buyer's Guide to Suppressors

    Whether you’re a hunter or sports shooter, surely at least one time you thought about getting a silencer for your weapon (especially after long shooting sessions that may be overwhelming for your ears). However, if you have never owned a silencer, buying it...

    Posted By: rainierblog

    Posted On: March 10 2023

Google Customer Reviews Google Customer Reviews