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Questions & Answers
button or cut rifling Expert Answer

The Rainier Arms AR Ultramatch MOD2 .308 Barrels are button rifled.

by Hunter, Gear Expert, September 29, 2023
Does it come with gas block? Expert Answer

The Rainier Arms AR Ultramatch MOD2 .308 Barrel does not include a gas block. All models feature a 0.875" gas block seat and a rifle length gas system.

by Ethan, Gear Expert, December 7, 2022
Customer Reviews
Most Recent Reviews Darn good barrel for the price by Clark1sl, Verified Owner, May 31, 2024
Just bought the barrel a week ago and already put 100 rds through it so far. Very accurate barrel, more accurate than I am and the finish on it is amazing. I've been getting consistent .6 to .7 moa groupings using hornady match 178 grains and federal...
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Read 1 Review
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Product Info for Rainier Arms AR Ultramatch MOD2 .308 Barrel

Introducing their MOD2 UltraMatch barrel using the finest blank. Their goal is to mass produce them to bring them to market at the most competitive prices. They wanted the best balance between accuracy while keeping the weight down as much as possible.image

Specifications for Rainier Arms AR Ultramatch MOD2 .308 Barrel:

Manufacturer: Rainier Arms
Color: Silver
Fabric/Material: Stainless Steel
Caliber: .308 Winchester
Barrel Profile: M4
Gas System Length: Rifle Length
Threads per Inch: 5/8x24
Barrel Twist Rate: 1-10
Flutes: No
Gun Make: AR Platform
Gun Model: AR-10
Condition: New

Package Contents:

  • Rainier Arms Ultramatch MOD2 .308 Barrel

Rainier Arms AR Ultramatch MOD2 .308 Barrel Orderable Models

List of Orderable Models

Rainier Arms Ultramatch MOD2 .308 Barrel, 16in Satin, 1-10 Twist, 5/8x24, Silver, Medium, RAB-UM2-308-16-R-FF-SAT , MPN: RAB-UM2-308-16-R-FF-SAT , UPC: 744985351671 , Code: 4ZM-ATB-S4-RAB-UM2-308-16-R-FF-SAT
Rainier Arms Ultramatch MOD2 .308 Barrel, 16in Polished, 1-10 Twist, 5/8x24, Silver, Medium, RAB-UM2-308-16-R-FF-POL , MPN: RAB-UM2-308-16-R-FF-POL , UPC: 744985351664 , Code: 4ZM-ATB-S4-RAB-UM2-308-16-R-FF-POL
Rainier Arms Ultramatch MOD2 .308 Barrel, 24in Polished, 1-10 Twist, 5/8x24, Silver, Medium, RAB-UM2-308-24-R-FF-POL , MPN: RAB-UM2-308-24-R-FF-POL , UPC: 744985351763 , Code: 4ZM-ATB-S4-RAB-UM2-308-24-R-FF-POL
Rainier Arms Ultramatch MOD2 .308 Barrel, 18in Satin, 1-10 Twist, 5/8x24, Silver, Medium, RAB-UM2-308-18-R-FF-SAT , MPN: RAB-UM2-308-18-R-FF-SAT , UPC: 744985351688 , Code: 4ZM-ATB-S4-RAB-UM2-308-18-R-FF-SAT
Rainier Arms Ultramatch MOD2 .308 Barrel, 18in Polish, 1-10 Twist, 5/8x24, Silver, Medium, RAB-UM2-308-18-R-FF-POL , MPN: RAB-UM2-308-18-R-FF-POL , UPC: 744985351695 , Code: 4ZM-ATB-S4-RAB-UM2-308-18-R-FF-POL
Rainier Arms Ultramatch MOD2 .308 Barrel, 20in Polished, 1-10 Twist, 5/8x24, Silver, Medium, RAB-UM2-308-20-R-FF-POL , MPN: RAB-UM2-308-20-R-FF-POL , UPC: 744985351725 , Code: 4ZM-ATB-S4-RAB-UM2-308-20-R-FF-POL
Rainier Arms Ultramatch MOD2 .308 Barrel, 24in Satin, 1-10 Twist, 5/8x24, Silver, Medium, RAB-UM2-308-24-R-FF-SAT , MPN: RAB-UM2-308-24-R-FF-SAT , UPC: 744985351756 , Code: 4ZM-ATB-S4-RAB-UM2-308-24-R-FF-SAT
Rainier Arms Ultramatch MOD2 .308 Barrel, 20in Satin, 1-10 Twist, 5/8x24, Silver, Medium, RAB-UM2-308-20-R-FF-SAT , MPN: RAB-UM2-308-20-R-FF-SAT , UPC: 744985351732 , Code: 4ZM-ATB-S4-RAB-UM2-308-20-R-FF-SAT

Rainier Arms AR Ultramatch MOD2 .308 Barrel Unavailable & Discontinued Models

List of Unorderable Models

USED, Rainier Arms Ultramatch MOD2 .308 Barrel, 18in Polish, 1-10 Twist, 5/8x24, Silver, Medium, RAB-UM2-308-18-R-FF-POL , MPN: RAB-UM2-308-18-R-FF-POL-EDEMO , Code: 4ZM-ATB-S4-RAB-UM2-308-18-R-FF-POL-EDEMO-US-U
DEMO, Rainier Arms Ultramatch MOD2 .308 Barrel, 24in Satin, 1-10 Twist, 5/8x24, Silver, Medium, RAB-UM2-308-24-R-FF-SAT , MPN: RAB-UM2-308-24-R-FF-SAT-DEMO , Code: 4ZM-ATB-S4-RAB-UM2-308-24-R-FF-SAT-DEMO
DEMO, Rainier Arms Ultramatch MOD2 .308 Barrel, 18in Satin, 1-10 Twist, 5/8x24, Silver, Medium, RAB-UM2-308-18-R-FF-SAT , MPN: RAB-UM2-308-18-R-FF-SAT-DEMO , Code: 4ZM-ATB-S4-RAB-UM2-308-18-R-FF-SAT-DEMO
USED Rainier Arms Ultramatch MOD2 .308 Barrel, 18in Satin, 1-10 Twist, 5/8x24, Silver, Medium, RAB-UM2-308-18-R-FF-SAT, EDEMO1, Condition Parts Only/Salvage, Wrong Product , MPN: RAB-UM2-308-18-R-FF-SAT-EDEMO1 , Code: 4ZM-ATB-S4-RAB-UM2-308-18-R-FF-SAT-EDEMO-WP-F
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