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Rainier Arms AR Select 300BLK Barrel Color: Black, Finish: Nitride, 24% Off w/ Free Shipping

Rainier Arms Select 300BLK Barrel, 16in, 1-7 Twist, 5/8x24, Black, Medium, RAB-SEL-300-16-P-NF-BLK
Rainier Arms Select 300BLK Barrel, 16in, 1-7 Twist, 5/8x24, Black, Medium, RAB-SEL-300-16-P-NF-BLK
Rainier Arms Select 300BLK Barrel, 16in, 1-7 Twist, 5/8x24, Black, Medium, RAB-SEL-300-16-P-NF-BLK
Rainier Arms Select 300BLK Barrel, 16in, 1-7 Twist, 5/8x24, Black, Medium, RAB-SEL-300-16-P-NF-BLK
Rainier Arms Select 300BLK Barrel, 16in, 1-7 Twist, 5/8x24, Black, Medium, RAB-SEL-300-16-P-NF-BLK
Rainier Arms Select 300BLK Barrel, 16in, 1-7 Twist, 5/8x24, Black, Medium, RAB-SEL-300-16-P-NF-BLK
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Rainier Arms Select 300BLK Barrel, 16in, 1-7 Twist, 5/8x24, Black, Medium, RAB-SEL-300-16-P-NF-BLK
Rainier Arms Select 300BLK Barrel, 16in, 1-7 Twist, 5/8x24, Black, Medium, RAB-SEL-300-16-P-NF-BLK
2 of 5 images
Rainier Arms Select 300BLK Barrel, 16in, 1-7 Twist, 5/8x24, Black, Medium, RAB-SEL-300-16-P-NF-BLK
Rainier Arms Select 300BLK Barrel, 16in, 1-7 Twist, 5/8x24, Black, Medium, RAB-SEL-300-16-P-NF-BLK
3 of 5 images
Rainier Arms Select 300BLK Barrel, 16in, 1-7 Twist, 5/8x24, Black, Medium, RAB-SEL-300-16-P-NF-BLK
Rainier Arms Select 300BLK Barrel, 16in, 1-7 Twist, 5/8x24, Black, Medium, RAB-SEL-300-16-P-NF-BLK
4 of 5 images
Rainier Arms Select 300BLK Barrel, 16in, 1-7 Twist, 5/8x24, Black, Medium, RAB-SEL-300-16-P-NF-BLK
Rainier Arms Select 300BLK Barrel, 16in, 1-7 Twist, 5/8x24, Black, Medium, RAB-SEL-300-16-P-NF-BLK
5 of 5 images
Rainier Arms Select 300BLK Barrel, 16in, 1-7 Twist, 5/8x24, Black, Medium, RAB-SEL-300-16-P-NF-BLK

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Questions & Answers
Is this 4150 CMV? Or, what is the material on this? If the 16" barrel still pistol length gas tube?

Stainless steel.

by Kevlar Kev, Verified Owner, December 11, 2024
what length gas system? not listed Expert Answer

All Rainier Arms AR Select 300BLK Barrels feature a pistol length gas system and 0.750" gas block seat.

by Ethan, Gear Expert, December 20, 2023
View All Q&A You Have a Question? Ask!
Customer Reviews
Most Recent Reviews
My new favorite barrel by Dan, Verified Owner, September 30, 2024
bought this to swap out a BA barrel and i really like the profile and performance with subs and supers. not much else to say. I took a chance on this because i needed the irregular length to attach a rifle speed gasblock. happy i did
Read 1 Review
Color:
Black
Finish:
Nitride
Caliber:
.300 AAC Blackout
Barrel Length:
16 in
Barrel Profile:
M4
Gas Block Journal Size-Diameter:
.750 in
Barrel Twist Rate:
1-7
Flutes:
No
Gun Make:
AR Platform
Gun Model:
AR-15
Firearms Threads Per Inch:
5/8x24

Code: 4ZM-ATB-CPO25-RAB-SEL-300-16-P-NF-BLK

MPN: RAB-SEL-300-16-P-NF-BLK

UPC: 744985350995

List: $195.00Save 24%
$147.99

Product Info for Rainier Arms AR Select 300BLK Barrel

Many have asked us to build a barrel with the same workmanship as our Match barrels while keeping it more affordable. We are able to reach our goal by sourcing a very high end barrel blank at an affordable price. We start off using a high precision match blank in 1:7 twist, use a 5 groove polygonal rifling, machine it to the highest quality and matched with our limited-life time warranty, you have a barrel that is the best value, hands down, in the industry.image

Specifications for Rainier Arms AR Select 300BLK Barrel:

Manufacturer: Rainier Arms
Color: Black
Finish: Nitride
Fabric/Material: Stainless Steel
Caliber: .300 AAC Blackout
Barrel Length: 16 in
Barrel Profile: M4
Gas Block Journal Size-Diameter: .750 in
Barrel Twist Rate: 1-7
Flutes: No
Gun Make: AR Platform
Gun Model: AR-15
Firearms Threads Per Inch: 5/8x24

Package Contents:

  • Rainier Arms Select 300BLK Barrel

What firearm models does the manufacturer say Rainier Arms AR Select 300BLK Barrel is compatible with?

The manufacturer says that Rainier Arms AR Select 300BLK Barrel is compatible with AR-15

Rainier Arms AR Select 300BLK Barrel Orderable Models

List of Orderable Models

  • Rainier Arms Select 300BLK Barrel, 16in, 1-7 Twist, 5/8x24, Black, Medium, RAB-SEL-300-16-P-NF-BLK , MPN: RAB-SEL-300-16-P-NF-BLK , UPC: 744985350995 , Code: 4ZM-ATB-CPO25-RAB-SEL-300-16-P-NF-BLK

Rainier Arms AR Select 300BLK Barrel Unavailable & Discontinued Models

List of Unorderable Models

  • Rainier Arms Select 300BLK Barrel, 6.5in, 1-7 Twist, 5/8x24, Black, Small, RAB-SEL-300-65-PM1-NF-BLK , MPN: RAB-SEL-300-65-PM1-NF-BLK , UPC: 744985350964 , Code: 4ZM-ATB-CPO25-RAB-SEL-300-65-PM1-NF-BLK
  • Rainier Arms Select 300BLK Barrel, 8in, 1-7 Twist, 5/8x24, Black, Small, RAB-SEL-300-8-P-NF-BLK , MPN: RAB-SEL-300-8-P-NF-BLK , UPC: 744985350971 , Code: 4ZM-ATB-CPO25-RAB-SEL-300-8-P-NF-BLK
  • Rainier Arms Select 300BLK Barrel, 10.7in, 1-7 Twist, 5/8x24, Black, Small, RAB-SEL-300-107-P-NF-BLK , MPN: RAB-SEL-300-107-P-NF-BLK , UPC: 744985350988 , Code: 4ZM-ATB-CPO25-RAB-SEL-300-107-P-NF-BLK
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Last updated 2026-09-28 UTC.