Rock River Arms LAR-BT3 Varmint 308 Win 20" Bull Barrel Rifle

The Rock River Arms LAR-BT3 Varmint delivers precision shooting capabilities with its heavy-profile stainless steel barrel and match-grade components. This 308 Winchester platform combines accuracy-focused engineering with tactical versatility for demanding applications.

What Makes This Different

The 20-inch stainless steel bull barrel provides exceptional heat dissipation and consistent accuracy compared to standard profile barrels. Rock River's billet receiver construction eliminates the dimensional variations found in forged alternatives, creating a more precise platform. The 17-inch M-LOK handguard extends nearly to the muzzle, maximizing accessory mounting options while maintaining barrel rigidity.

Key Features

• 20-inch stainless steel bull barrel for enhanced accuracy and heat resistance
• Black billet aluminum upper and lower receivers with tight tolerances
• 17-inch M-LOK compatible handguard with full-length top rail
• OEM NSP-2 carbine stock with multiple length-of-pull positions
• Hogue overmolded pistol grip for secure handling in all conditions
• 20+1 capacity with standard SR-25 pattern magazines
• Standard AR-10 trigger group compatibility for upgrades

The heavy barrel profile maintains point-of-impact consistency during extended shooting sessions, making this rifle suitable for precision applications and varmint hunting. The 308 Winchester chambering provides effective range beyond 800 yards with appropriate ammunition selection. Weather-resistant components and corrosion-resistant finishes ensure reliable function in field conditions.

Technical Specs

• Caliber: 308 Winchester/7.62x51 NATO
• Barrel Length: 20 inches, stainless steel bull profile
• Overall Length: Approximately 40 inches (stock collapsed)
• Weight: Approximately 9.5 pounds (unloaded)
• Magazine Capacity: 20 rounds (plus one chambered)
• Handguard: 17-inch M-LOK aluminum free-float
• Stock: OEM NSP-2 6-position carbine stock
• Grip: Hogue overmolded rubber construction
• Receiver: Billet aluminum, black anodized finish
• Twist Rate: 1:10 inches (typical for 308 Win)

This precision-built platform addresses the requirements of shooters who demand accuracy without sacrificing modularity. The combination of premium components and proven engineering makes this rifle a solid investment for serious applications.