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.300 Blackout Barrels

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Rainier Arms Match 300BLK AR-15 Barrel - 10.5"

5.0 star rating 1 Review

$260.00

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Rainier Arms Match 300BLK AR-15 Barrel - 14.5"

$260.00

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Rainier Arms Match 300BLK AR-15 Barrel - 16"

$260.00

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Rainier Arms Match 300BLK AR-15 Barrel - 8.5"

$260.00

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Rainier Arms Ultramatch MOD2 300BLK AR-15 Barrel - 16" Satin
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4.8 star rating 30428 Reviews

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Verified Reviewer

0.0 star rating

04/08/25

Review by Anonymous User

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04/08/25

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richard s.
Verified Buyer

5.0 star rating

04/08/25

Great service, super fast processing

Review by richard s. on 8 Apr 2025 review stating Great service, super fast processing
Great service, super fast processing GREAT GUN. .

On Sig Sauer M400 Tread Predator 2 5.56 NATO Rifle - 16"

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04/08/25

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Sam S.
Verified Reviewer

3.0 star rating

04/08/25

Not flush with their own adapter

Review by Sam S. on 8 Apr 2025 review stating Not flush with their own adapter
It does the job, little bit heavy, but it is at the shoulder so you can compensate. But for the money you pay for it, why doesn't your brace and your adapter fit correctly.

On A3 Tactical HDA3 Hybrid Folding Brace For MCX - Black

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04/08/25

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Dan V.
Verified Buyer

5.0 star rating

04/07/25

Aim True and Do it

Review by Dan V. on 7 Apr 2025 review stating Aim True and Do it
Love it. Quick shipping and excellent service

On True Precision Sig Sauer P365 X-Fluted Match Grade Barrel

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04/07/25

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DARRYN N.
Verified Buyer

5.0 star rating

04/07/25

Yeah. Not Disappointed

Review by DARRYN N. on 7 Apr 2025 review stating Yeah. Not Disappointed
Has made a big difference in my follow up shots. Can't be happier and will continue to buy from RA. Great prices and so far trustworthy.

On DPM Mechanical Telescopic Recoil Reduction System for Springfield Hellcat 3" & Threaded Barrel 3.8"

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04/07/25

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Larry B.
Verified Reviewer

5.0 star rating

04/06/25

6mm Arc Rainier Arms Match 22" Barrel

Review by Larry B. on 6 Apr 2025 review stating 6mm Arc Rainier Arms Match 22" Barrel
I bought this barrel for an AR build. It is a tack driver at 100 yards. I'm shooting 105 grain Berger VLD Hunting bullets with a . 640 inch group @ 100 yards. I couldn't be happier, especially out of a gas gun.

On Rainier Arms Match 6mm ARC AR-15 Barrel - 22" Satin

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04/06/25

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