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

CZ 75 Legend 01
CZ 75 Legend 01

The CZ 75 Legend: Rebirth of an Icon

If you make a short list of the most influential handgun designs of the 20th century, the CZ 75 would make the cut. A half century since its introduction, CZ is honoring that legendary status with the CZ 75 Legend.

39 New Rifles for 2026

Today's new rifles run the gamut from the latest and greatest packed with the most up-to-date features money can buy to retro-inspired models that give us a glimpse of the way things used to be if you wanted to send a bullet "over there somewhere."

The Armed Citizen® June 1, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

Tactical Belts For The Rest Of Us

Most shooters don’t need a "war belt." While enthusiasts like the idea of preparing for every contingency, the vast majority of us need a reliable platform for a range session, a training class or a local club match.

Review: Trijicon Credo 1-10x28 mm Riflescope

With a 10X magnification range, the Trijicon Credo 1-10x28 mm riflescope is ideal for close-range targets, long-range pursuits and everything in between.

Study Shows Widespread Public Approval for Self-Defense, Recreational Shooting

Research conducted by Responsive Management annually for the Council to Advance Hunting and the Shooting Sports (CAHSS) found that, in 2025, 78 percent of adult residents in the United States believe learning self-defense skills with a firearm is completely acceptable.

Interests



Get the best of American Rifleman delivered to your inbox.