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

1860 Spencer Carbine 2
1860 Spencer Carbine 2

I Have This Old Gun: Model 1860 Spencer Carbine

One of the most revolutionary shoulder arms of the American Civil War, the Model 1860 Spencer carbine went from being an experimental design at the war's beginning to ultimately becoming the official issue arm of the U.S. Cavalry by war's end.

New For 2025: Tippmann Arms Integrally Suppressed M4-22s

In anticipation of the upcoming $0 NFA tax stamp enactment, Tippmann Arms is now offering integrally suppressed versions of its M4-22 design.

Favorite Firearms: A Winchester Model 54 Turns 100

Serving during World War I in 1918, my father completed two years in the Engineer Corps. In addition to his engineering duties, he and all the other soldiers had to carry and qualify with the Model 1903 Springfield rifle, since they were often on the front lines.

Winchester Ammunition Opens New Office In Missouri

Winchester Ammunition opened a new office in Clayton, Mo., which will accommodate much of the company's full-time administrative staff and is located several hours away from the Lake City Army Ammunition Plant.

Searching For The Perfect Single-Action Revolver

Bitten by the cowboy handgun bug early on—and influenced by no less an innovator than Elmer Keith—the author finds that, in the search for the ultimate single-action revolver, perfection is an elusive target.

The Armed Citizen® Dec. 15, 2025

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

Interests



Get the best of American Rifleman delivered to your inbox.