NRA Gun of the Week: Rock River Arms RBG-1S

by
posted on January 29, 2021
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
Rock River Arms worked with some of the industry’s top shooters and manufacturers to create the ideal blend between the action, stock and barrel. The result: RBG-1S, an incredibly accurate rifle that’s customizable and designed for durability and ease-of-use, and it provides great potential for future upgrades. The name breaks down as follows: Rock Bolt Gun, First Generation, Short Action.

Tan-colored rifle with black stock and text on image noting make and model: Rock River Arms RBG-1S

At the heart of the Rock River Arms RBG-1S is a purpose-built action from Bighorn Arms, a known quantity in the precision-shooting community. The stainless-steel receiver features an integrated recoil lug, Savage-style small shank thread tenon and an interchangeable floating bolt head. The action features controlled-round feed, as well as a durable fixed ejector and a bayonet-style firing-pin assembly.

Man ballcap white hand on tan rifle with black scope orange rest

Rock River leans on Wilson Arms for supplying a high-quality barrel blank that RRA stress relieves and cryogenically treats that is known to produce a high level of accuracy. To provide the user interface RRA partnered with Kinetic Research Group (KRG) for its Whiskey-3 chassis. Shooters will have the ability to fine tune the rifle to their needs depending on shooting style. KRG supplies a straight pistol grip and a customizable fore-end with accommodation for M-LOK, Picatinny rail, and ARCA-style rail for use with bipods and other accessories.

Man with ballcap and AR logo shooting rifle dynamic view silver barrel steel orange shooting rest table black optic riflescope target shooting on shooting range

Watch our NRA Gun of the Week video above to learn more about the Rock River Arms RBG-1S bolt-action rifle.

RRA RBG-1S Specifications
Manufacturer: Rock River Arms
Action Type: controlled-round feed, bolt-action, center-fire rifle
Chambering: 6.5 Creedmoor
Barrel: 24” stainless steel
Receiver: stainless steel Bighorn Arms TL-3
Sights: none; 20 m.o.a. Picatinny rail
Stock: KRG Whiskey-3 adjustable chassis
Trigger: single-stage TriggerTech
Magazine: AICS-pattern detachable box
Overall Length: 43.5”
Weight: 10.5 lbs.
MSRP: $4,235

Further Reading:
Review: Rock River Arms LAR-47 X-1

Rock River R9 Competition BT-9G

The Rise of the 9mm M1911

Tested: Rock River Poly 1911 Pistols

The Beginnings of Marine Corps Marksmanship

Latest

Allan Cors In Memoriam
Allan Cors In Memoriam

Past NRA President Allan Cors, 1936-2026: Liberty Takes A Loss

One of liberty’s champions, past NRA President Allan D. Cors died on August 10, 2026.

Moving to the Micro Red-Dot: An Old Dog Learns Some New Tricks

After shooting open-sighted handguns for more than 40 years, the author's aging eyes finally caught up to him, and his concealed-carry pistol now sports a red-dot optic.

Record-Setting Number of Women Receive Free Firearms Training in Michigan

Across two days of free training at Recoil Firearms in Taylor, Mich., a record-setting 2,454 women were given hands-on instruction in the safe and effective use of firearms.

7 New Pistol Suppressors for 2026

For handgunners, having a suppressor makes range trips much more comfortable, and many new suppressors have been designed for maximum compatibility across today's most popular handgun styles and chamberings.

A Victory That Ends A Gun Registry

On August 5, U.S. District Judge James Wesley Hendrix of the Northern District of Texas held that key regulatory provisions of the NFA are unconstitutional as applied to certain categories of firearms.

Criminal Clues: Tips to Avoid Appearing Like a Soft Target

You don’t have to be the hardest target, but you don’t want to be the softest. Here are some tips on how to avoid becoming a target for a criminal looking for his or her next opportunity.

Interests



Get the best of American Rifleman delivered to your inbox.