Rock River Arms LAR-15 ATH 5.56 NATO, 18-inch Stainless Heavy Barrel, Free-Float Quad-Rail, Multi-Port Brake — AR1560
The Rock River Arms LAR-15 Advanced Tactical Hunter (ATH) pairs an 18-inch stainless heavy barrel with a free-float quad-rail and A4 flat-top receiver for a precise, feature-rich AR-15 platform. This USA-made AR1560 variant includes a multi-port muzzle brake, low-profile gas system under the handguard, and RRA-branded furniture, and comes with a factory hard case and a 20-round magazine.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are minimal markings from prior handling and use. Please refer to the photos for a detailed view of the exterior surfaces.
What’s Included
- Rock River Arms factory hard case
- 1x 20-round USGI-style metal STANAG-pattern magazine
This ATH features an 18-inch stainless steel heavy-profile barrel that is threaded and fitted with a multi-port muzzle brake with a crenellated face. The barrel is paired with a low-profile set-screw gas block under the free-float quad-rail, supporting consistent harmonics and heat management for repeatable accuracy.
The A4 flat-top upper includes a T-marked Picatinny rail, forward assist, case deflector, and ejection port cover. The handguard provides rails at 12, 3, 6, and 9 o'clock with a continuous top rail for precise alignment of compatible accessories.
Furniture includes a Rock River Arms collapsible 6-position stock with rubber buttpad and an overmolded rubber pistol grip with finger grooves for a stable hold. Controls include a manual safety and an RRA-branded charging handle. The receivers are aluminum with a matte black anodized finish.
This AR-15 platform rifle is marketed with a 3/4-MOA accuracy claim by the factory/retailer. The included factory case bears a label noting the model and AR1560 part number matching the receiver’s serial, aligning the packaging to the firearm. Made in the USA.