Category Archives: Rainier Arms

AAC Breakout Compensator for a 300 Blackout Barrel

One question I get a lot – what’s the best compensator for a 300 Blackout Barrel?  Check out this video on the AAC Breakout Compensator.

Customer Review: Rainier Arms .223 XTC Compensator

RA223XTCB pic 1Nick of Pooler, GA gave the Rainier Arms .223 XTC Compensator a 5 star review! Here’s what he had to say:

“I love my new comp: The xtc is awesome there is barely any recoil with it and it keeps the barrel still it feels like I’m shooting a 22, and with my spikes t3 buffer and sprinco blue buffer spring I can tell my follow up shots were faster after the first few shots. That up and to the right jump is gone this is certainly worth more than what I paid for it. I would give it 10 stars if I could!”

Thank you, Nick, for shopping at!

If you found this review helpful, click here, scroll down till you see the review and where it says “Was this review helpful?” click “Yes”.  Thanks!

If you’re interested in the other products Nick mentioned in his review you can check them out by clicking the links: Spike’s T3 Buffer and the Sprinco M4 Carbine Enhanced Power Buffer Spring Blue

If you’d like to check out a video on the Rainier Arms .223 XTC go here and scroll down to the product description.

300 Blackout Barrels in Stock Now!


300 barrel 0712

We currently have a variety of very high quality 300 Blackout barrels in stock.  They are Rainier Arms Select and Ultra Match barrels in 10.5″ and 14.5″ lengths and are all made from high grade stainless steel.  The Select Barrels are made from the same mill as HK barrels and have polygonal rifling.  The Ultra Match barrels are made from the finest Shilen blanks.  Perfect for that new build.