Rock River Arms LAR-BT3 Predator HP | .243 Win | 20in | 243A1534BT

The Rock River Arms LAR-BT3 Predator HP is a billet-receiver modern sporting rifle chambered in .243 Winchester and fitted with a 20-inch fluted, cryogenically treated stainless steel barrel. It uses a rifle-length gas system, an RRA two-stage trigger, a 17-inch M-LOK free-float handguard and an adjustable six-position Operator car stock with a Hogue rubber pistol grip. For a matched optic under $1,000 consider a Vortex Viper PST Gen II 1-6×24 or similar compact precision scope for practical accuracy and target acquisition.

Typical applications for this rifle include medium-game hunting and precision varmint/target shooting where a lightweight, accurate AR-platform chambering is preferred.

Product Specifications

• The caliber is listed as .243 Winchester.
• The barrel measures 20 inches and is fluted and cryogenically treated stainless steel.
• The twist rate is 1:10.
• The action is semi-automatic.
• The rifle uses a rifle-length gas system.
• The muzzle is threaded 5/8-24 and fitted with an RRA Operator Brake.
• The handguard is a 17-inch M-LOK free-float rail.
• The upper and lower receivers are billet aluminum.
• The trigger is an RRA two-stage trigger.
• The stock is an RRA 6-position Operator Car adjustable stock.
• The pistol grip is a Hogue rubber grip.
• The overall length is listed as 39 inches.
• The weight is listed as 9.2 pounds.
• Magazine capacity is listed as 20 in the product data; some source strings also show 20+1—see notes.
• The UPC is 842834125685.

This LAR-BT3 Predator HP brings billet construction and a precision-oriented barrel package to the AR format while retaining practical features like a full-length M-LOK rail and an operator-style adjustable stock. The combination of a cryo-treated stainless fluted barrel, a two-stage trigger and ergonomic controls makes it suitable for field use and deliberate precision shooting. Its hardware and finish are specified for long-term service and repeatable shot placement.

Owners commonly report strong accuracy and solid handling: some users note 1 MOA performance, and others praise the comfortable Hogue rubber grip and overall build quality.

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