Description
The Rock River Arms LAR-BT3 Predator HP is a 6.5 Creedmoor semi-automatic built on billet receivers, with a 24-inch cryogenically treated fluted stainless barrel and a 17-inch M-LOK free float rail. Rock River guarantees it to 1 MOA at 100 yards. 
Billet Receivers, Not Forgings
The LAR-BT3 upper and lower are machined from billet aluminum rather than forged. Billet allows tighter tolerances and a closer receiver fit, which on a semi-automatic precision rifle translates directly into consistency. That is the foundation the Rock River Arms LAR-BT3 Predator HP is built on, and it is why the rifle carries an accuracy guarantee that most gas guns do not.
24-Inch Cryogenically Treated Barrel
The barrel is fluted stainless steel with a 1:8 twist, and it is cryogenically treated. Cryo treatment relieves the internal stresses left by machining, which reduces how much a barrel walks as it heats up during a string of shots. Fluting sheds weight and increases surface area for cooling. Twenty-four inches lets 6.5 Creedmoor reach the velocities the cartridge is capable of, which is where its famous long-range performance comes from.
Rifle-Length Gas System
A low profile gas block feeds a rifle-length gas system, the longest and gentlest arrangement available on this platform. Lower port pressure means slower unlocking, less violent extraction and noticeably less recoil. For a rifle intended to put multiple rounds precisely on target, that softer impulse matters as much as the barrel does.
Two-Stage Ultra Match Trigger
RRA’s two-stage Ultra Match trigger is fitted from the factory. It has a light, predictable take-up and a clean break, and it is genuinely competitive with aftermarket triggers costing a significant fraction of the rifle. On a 1 MOA guarantee, the trigger is not an afterthought.
17-Inch M-LOK Free Float Rail
The lightweight free float rail extends 17 inches and is M-LOK compatible throughout. That is enough length to mount a bipod well forward for maximum stability, plus a light and a sling, without anything touching the barrel. Free floating is essential here. A rail that contacts the barrel will shift point of impact the moment you load a bipod.
Predator-Ready Configuration
The rifle ships with an RRA Operator Brake on 5/8×24 threads, a six-position Operator CAR stock and a Hogue rubber grip. At 9.6 pounds and 43 inches it is substantial, which is exactly what you want prone over a bipod at distance. One magazine, a case and the manual come in the box.
Specifications
- Manufacturer: Rock River Arms
- Model: LAR-BT3 Predator HP
- Type: Semi-automatic rifle, AR-10 pattern
- Caliber: 6.5 Creedmoor
- Barrel: 24 in., fluted stainless steel, cryogenically treated
- Twist: 1:8 in.
- Muzzle Device: RRA Operator Brake, 5/8×24 threads
- Gas System: Rifle length with low profile gas block
- Upper Receiver: RRA LAR-BT3 billet A4
- Lower Receiver: RRA LAR-BT3 billet
- Handguard: RRA lightweight free float, 17 in. extended, M-LOK compatible
- Stock: RRA six-position Operator CAR
- Grip: Hogue rubber
- Trigger: RRA two-stage Ultra Match
- Weight: 9.6 lbs.
- Overall Length: 43 in.
- Accuracy: 1 MOA at 100 yards
- Included: One magazine, case, manual
- Manufacturer Part Number: 65C1544BT
- UPC: 842834114016
Who Should Buy It
This is a predator and long-range rifle for a shooter who wants bolt-gun accuracy with semi-automatic follow-up shots. Coyote hunters working calls, where a second shot often presents itself in seconds, are exactly the intended audience.
The Rock River Arms LAR-BT3 Predator HP weighs 9.6 pounds before an optic and bipod, so it is not a rifle for covering ground on foot. It is also expensive, and 6.5 Creedmoor barrels wear faster than 308 under high round counts.
Hunters who walk a lot should compare a lightweight bolt action, and shooters who want lower running costs should look at a 308 in our catalog. Every firearm we list ships to your chosen FFL and is transferred in accordance with federal and state law.
Browse our full firearms catalog for more rifles, pistols and shotguns, and check factory specifications for the Rock River Arms LAR-BT3 Predator HP at Rock River Arms before you order. Our team can help with optics, bipods, ammunition or transfer paperwork.
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