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

Galco Revenger Sb7 Belt Review 1
Galco Revenger Sb7 Belt Review 1

Review: Galco Revenger Holster & SB7 Gun Belt

For those who choose to carry a finely finished, K-frame revolver, Galco offers one of its finest concealed-carry setups in the form of its Revenger holster and SB7 gun belt.

Rimfire Power: The Primary Arms CLx 1-6x24 mm Riflescope with ACSS 22LR G2 Reticle

Low-power variable optics have become popular options for today's AR-15s and other modern sporting rifles, and Primary Arms now offers an option tailored for rimfire versions of those same guns.

Gun of the Week: Walther Arms PDP F-Series Pro-X PMM

One of Walther Arms' recent introductions combines the features of several other PDP handguns, meaning the Walther PDP F-Series Pro-X PMM is packed with a number of different design elements.

The Armed Citizen® Oct. 30, 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.

President's Column | Your Input is Valued

I wish to thank all our members who have sent me e-mails these last 12 months. I’m doing my best to keep up with all your e-mails, but please be aware it seems I’m always 300 to 400 e-mails behind. I want to reiterate that I am reading them all as fast as I have time for.

Building an X-Card Gun for Turkey Shoots

Unofficially known as a “turkey shoot,” X-Card competition challenges shotgunners to place shot pellets as closely as possible to the center of a target. And some makers have perfected a way to fine-tune shotguns for this purpose.

Interests



Get the best of American Rifleman delivered to your inbox.