The Rock River RBG rifle is a repeating sporting rifle with a 4-barrel lock and 24" barrel and adapted to.308 Winchester caliber (7.62 × 51 mm). The weapon was designed with long-range shooting in mind . It features a heavy and precise self-supporting barrel made of stainless steel. The thread pitch is 1:10", which ensures good stabilization of a wide range of bullets available on the market. The rifle is equipped with a lightweight polymer bed with pistol grip and a skeletonized buttstock with fully adjustable footplate and cheekpiece. Importantly, the buttstock can be removed for transporting the weapon. The breech chamber and lock were manufactured at Bighorn Arms, a company that prides itself on producing high quality gun parts. The model has a stock made in black.
Features of the Rock River Arms RBG cal. 308 carbine:
- Compilation of high-quality assemblies: The rifle is composed of parts from various manufacturers and produced by Rock River Arms.
- Custom Production Weapon: RRA offers the RBG as a weapon for any modification, with a choice of trigger mechanism, barrel length, bed or caliber.
- Blast chamber and breech from Bighorn Arms: These components come from the renowned Bighorn Arms, with a redesigned TL3 assembly modeled after the Remington 700.
- Interchangeable breech face: Allows the breech to be easily adapted to a different caliber and is two-piece, which translates into a matching tolerance of the breech distance.
- Heavy barrel from Wilson Arms Company: Made of stainless steel and cryogenically treated to improve precision and stability of shots.
- Barrel mounting nut: Allows you to replace the barrel yourself and swap it for a different caliber.
- KRG Whiskey 3-type stock: Considered one of the best on the US market, made of a monolithic aluminum alloy block, lightweight and adjustable without tools.
- Adjustable Trigger Tech trigger mechanism (Timney optional): Companies known for their excellent quality devices, ensuring precise trigger operation.
- Optimized and tested assemblies: All components have been redesigned, optimized and tested to work in a single, consistent and compatible system.
- High precision: Thanks to the solutions used and optimization, the rifle achieves ½ MOA precision in the hands of a good shooter and with good ammunition.
Interchangeable breech face on the Rock River RBG rifle
The rifle uses a Remington lock with an interchangeable breech face. Unlike the design of the Remington 700, in the RBG rifle it was designed relatively innovatively. It is a component , which allows the lock to be quickly adapted to ammunition of different calibers. What's more, its design with a resilient washer between the bolts allows a minimum tolerance of the so-called stopping distance. This key solution ensures precise and secure seating of the cartridge in the chamber, thus eliminating the risk of problems associated with both loose and too tight locking. The whole is completed by a customized extractor claw.
Mechanism of operation of the rifle
The RRA RBG is a classic repeating rifle, based on a slide-turn (4-barrel) lock. Locking is carried out through symmetrically located bolts, corresponding to the locking resistance in the barrel's cartridge chamber. Such a system is simple and reliable, plus easy to clean and maintain. It also ensures high precision shooting and withstands the various pressures of the ammunition used.
Precision stainless steel barrel
The RBG rifle is equipped with a heavy stainless steel barrel supplied by Wilson Arms Company, a leading manufacturer with more than fifty years of experience. The barrel is cryogenically treated, which reduces stresses in the steel and significantly improves accuracy and shooting stability.
Safeties and manipulators
The rifle has two types of safeties. The primary one is a lever-operated safety located just behind the breech. It can be easily operated by the shooter without taking his hand off the grip. The second safety is a lock that prevents the shooter from firing when the breech is not cocked. The reloading lever has an enlarged head so as to improve the process of firing fast shots.
RBG rifle mounting rail
The rifle uses a 22mm Picantinny mounting rail on the breech chamber, which offers the possibility to install any form of optics or a collimator or a scope and magnifier set.
