The Rock River Arms LAR-BT3 X-Series X-1 with Operator CAR stock is a billet-receiver .308 rifle for hunting and precision work (brand part no. XBT31751B.V1). An 18-inch fluted stainless barrel, cryogenically treated with a 1:10 twist, carries an RRA Hunter muzzle brake. A 17-inch lightweight free-float rail with M-LOK slots covers the front end, and a six-position Operator CAR stock lets the rifle be sized to the shooter. A two-stage varmint trigger and a mid-length gas system make this a handy, accurate rifle. It is a fit for hunters who want a lighter .308 than a full-size precision build.

Key Specifications

• The chamber is .308 Winchester / 7.62x51mm NATO, a versatile cartridge for hunting and target shooting.
• The barrel is an 18-inch fluted stainless profile, cryogenically treated with a 1:10 twist.
• The muzzle device is the RRA Hunter muzzle brake on a 5/8×24 thread, which reduces recoil from the .308.
• Both the lower and upper receiver are RRA LAR-BT3 billet parts, machined for rigidity.
• The gas system is a mid-length system with a low-profile gas block, smoothing the action cycle.
• The trigger is an RRA Two Stage Ultra Match Varmint trigger, built for precise shot placement.
• The handguard is a 17-inch lightweight free-float rail, M-LOK compatible.
• The stock is an RRA six-position Operator CAR stock with a Hogue rubber grip.
• Weight is 8.5 pounds and length is 36.5 inches retracted; Rock River rates accuracy at 1 MOA at 100 yards.
• The rifle includes one magazine, a case, an extended charging handle latch, a manual and warranty information.

Frequently Asked Questions

What twist rate does the barrel have? Rock River lists a 1:10 twist.

Does it come with a muzzle brake? Yes. It has an RRA Hunter muzzle brake on a 5/8×24 thread.

What stock does this version use? This version has the six-position RRA Operator CAR stock.

Buy the Rock River Arms LAR-BT3 X-Series X-1 Rifle, .308 Win, 18-Inch Fluted Stainless Barrel, Operator CAR Stock, Hunter Muzzle Brake

The X-1 with the Operator CAR stock is a compact, accurate .308 with hunting features built in. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and browse more AR rifles from Rock River Arms.