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The ultimate stop for AR-15 Rifles and AR-15 parts
We are one of the largest sources for quality AR-10 and AR-15 rifles, parts and accessories online. Shop our selection of complete and stripped Uppers and Lowers, find Barrels and Ammo for your firearms.
Rainier Arms was started by enthusiasts for enthusiasts. We specialize in high end AR15s/M16s, high-end parts & accessories. If we won't use it, we won't sell it.
We offer a variety of firearms and firearm parts from your favorite manufacturers. Fill your needs from brands such as Glock, SIG, S&W, Primary Arms, Stag Arms, PWS, Rainier Arms... view all
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
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The LuthAR MBA 3 Stock reviewThe LuthAR MBA – 3 is a very interesting stock, it is not a traditional stock that most would put on the traditional AR platform. When it comes to carbine buffer tubes, most people start looking at the traditional Magpul stocks, Mission First Tactical and ma...
Posted By: rainierblog
Posted On: May 28, 2018
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10-8 Performance Handgun SightsLet's take a minute to discuss the bane of my existence - factory handgun sights. I hate them. It doesn't even matter which manufacturer, really. Realistically, you're going to end up with one of two options: 1) some sort of white dot sight, to include Glock's...
Posted By: Joel A
Posted On: March 19, 2018
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Arisaka Defense Offset Scout Mount ReviewProduct from this review: Arisaka Offset Scout Mount - M-Lok If you read my previous article [www.rainierarms.com/blog/scout-ultimate-ar-weapon-light/] about Scout lights, then you're aware that I'm a huge fan of the 600 pattern lights because of their capab...
Posted By: Joel A
Posted On: December 25, 2017
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Trijicon Accupower 1-8x28I've had the pleasure of experiencing Trijicon's Accupower 1-8x28 optic for the last three months. For those of you who may be looking for a low power variable optic for duty use, this is an optic you really need to take a look at. Low power variable optics O...
Posted By: Joel A
Posted On: December 7, 2017
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