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

Kimber 1911 Ds Warrior Gotw 1
Kimber 1911 Ds Warrior Gotw 1

Gun of the Week: Kimber 1911 DS Warrior LW

In 2026, Kimber developed its 1911 DS Warrior, an American-made, double-stack design that is intended to be an affordable entry point into Kimber's double-stack handgun line.

The Armed Citizen® April 24, 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.

Spin Difference: The Impact of Barrel Twist Rates on Terminal Performance

When most shooters think of rifling-twist rates, they mostly think of rifles with their high BC projectiles, but the rpm of a bullet also plays a part in terminal performance.

Beretta's 1301 Tactical vs. A300 Ultima Patrol Shotguns: Which Should You Choose?

Ever since Beretta launched the A300 Ultima Patrol shotgun in 2024 as a less-pricey alternative to the 1301 Tactical, shotgunners have debated whether the 1301 is worth the extra cost. Let's examine them both.

ZEV Technologies Escaping Washington State’s Hostile Political Climate

ZEV Technologies announced it is moving its headquarters and manufacturing operations out of Washington state to Utah’s Second Amendment-friendly business climate.

U.S. v. Hemani Arguments

On March 2, the U.S. Supreme Court heard oral arguments in U.S. v. Hemani. The case involves a defendant who is fighting a federal indictment for possessing a firearm while being a marijuana user.

Interests



Get the best of American Rifleman delivered to your inbox.