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Rainier Arms UltraMatch MOD2 6.5 Grendel AR-15 Barrel - 18" Satin

5.0 star rating 1 Review

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$400.00
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Rainier Arms Ultramatch MOD2 6.5 Grendel AR-15 Barrel - 16" Satin
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Verified Reviewer

0.0 star rating

07/09/25

Review by Anonymous User

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07/09/25

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Jason Y.
Verified Reviewer

5.0 star rating

07/08/25

18" mod 2 223 wylde ultramatch

Review by Jason Y. on 8 Jul 2025 review stating 18" mod 2 223 wylde ultramatch
Okay so barrel is broken in. This barrel is unbelievably accurate. Printed groups at 100,300,500 today and the verdict is in. WOW! 100 yards 3 shot measured 3/8", 300 yard 3 shot 7/8" and 500 yard measured under 2". Absolutely incredible. More accurate that most big bolt guns.

On Rainier Arms Ultramatch MOD2 .223 Wylde AR-15 Barrel - 18" Nitride

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07/08/25

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Raul
Verified Buyer

5.0 star rating

07/08/25

RAINIER ARMS AR-15 FORGED LOWER RECEIVER

Review by Raul on 8 Jul 2025 review stating RAINIER ARMS AR-15 FORGED LOWER RECEIVER
RAINIER ARMS AR-15 FORGED LOWER RECEIVER - hands down one of the tightest fitting receiver when paired with Rainier Arms forged upper receiver! I had to use a mallet to take it apart! Anodizing was perfect with deep black finish! Would definitely recommend!

On Rainier Arms AR-15 Forged Lower Receiver

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07/08/25

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Tony P.
Verified Buyer

5.0 star rating

07/07/25

Nomad Frames Rock. . !!

Review by Tony P. on 7 Jul 2025 review stating Nomad Frames Rock. . !!
Nomad Frames Rock. . !!

On Nomad 9F Enhanced Frame For Glock 17 Gen 5

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07/07/25

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Dan B.

2.0 star rating

07/07/25

Good idea, bad parts

Review by Dan B. on 7 Jul 2025 review stating Good idea, bad parts
It worked as advertised for a little bit. After about 200 rounds the reset piece snapped. $200 gone.

On Atrius Development 3 Position Super Selektor Safety

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07/07/25

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Comments by Store Owner on Review by Dan B. on 7 Jul 2025

Rainier Arms

07/07/25

Hi,

If you haven't already please reach out to Atrius directly as they can both handle the warranty for you.

07/07/25

R
Ricky B.
Verified Reviewer

5.0 star rating

07/06/25

Great barrel at a great price!

Review by Ricky B. on 6 Jul 2025 review stating Great barrel at a great price!
Don't be nervous to pull the trigger on this barrel. I've got over 1000 rounds of ammo through my 18" ultramatch fluted. It prints sub 1" MOA groups consistently when fed with at least 62gr NATO. With 77gr (particularly 77gr SMK bullets) you can get closer to sub . 5" MOA. Barrel is about as light as a rifle length barrel gets while retaining this type of rigidity and resonance period (yes including proof research / other boutique barrels. I noticed that cold bore shots vs a warm gun had a smaller deviation than that of other 16" / 18" barrels that I have shot with. Bottom line, if you're building an accurized ar15, this will meet or beat your expectations.

On Rainier Arms Ultramatch MOD2 .223 Wylde AR-15 Barrel - 18" Polished

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07/06/25

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