Rock River Arms LAR-15 Operator 5.56 NATO, 16 in Chrome-Moly Barrel, Free-Float Handguard, Collapsible Stock, Iron Sights
This Rock River Arms LAR-15 Operator stands out with its free-float ventilated aluminum handguard featuring continuous, integrated Picatinny rails at 12, 3, 6, and 9 o'clock, a 16-inch chrome-moly barrel marked RRA 5.56 NATO 1/9 CM, and included iron sights. The flat-top upper features a T-marked Picatinny rail with forward assist and dust cover, while the 6-position RRA stock and Hogue overmolded grip round out a practical, well-equipped AR-15 platform in very good condition with an excellent bore.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Light handling marks are present on exterior surfaces from prior use. Please review the photos for close-up views of cosmetic details.
What’s Included
- Rock River Arms LAR-15 Operator 5.56mm rifle
- 1x 30-round aluminum GI-pattern AR-15/STANAG magazine
- Detachable A2-style rear aperture sight with RRA logo (installed)
- Clamp-on flip-up front sight with sling loop (installed)
The Operator-series free-float handguard is a ventilated aluminum tube with continuous, integrated Picatinny rails at 12, 3, 6, and 9 o'clock that extend near the gas block, with no segment breaks or fasteners. This setup provides solid mounting real estate for mission-critical accessories while maintaining barrel free-float for consistent accuracy.
The 16-inch chrome-moly barrel is clearly roll-marked "RRA 5.56 NATO 1/9 CM," confirming chambering, twist rate, and material. An installed multi-port brake/flash suppressor with a crenelated crown caps the muzzle, offering effective gas management at the muzzle end.
The flat-top upper receiver includes a T-marked Picatinny rail for precise accessory placement, along with a forward assist and an ejection-port dust cover. The right side of the magwell is laser-etched "Rock River Arms" over "Operator," identifying the series.
Ergonomics are handled by a 6-position collapsible Rock River Arms stock with a ribbed buttpad and the RRA logo, paired with a Hogue overmolded rubber pistol grip with finger grooves. The included iron sights consist of a clamp-on flip-up front sight with sling loop and a detachable A2-style rear aperture mounted to the receiver rail.
This semi-automatic, direct-impingement AR-15 platform accepts standard AR-15 magazines and is configured for 30+1 capacity. The hard-anodized aluminum-alloy receivers and free-float design create a durable, user-focused carbine ready for practical applications.