SKU: 157968
UPC: 842834101139
MPN: AR0598.V1
The Rock River Arms AR0598.V1 LAR-15M All Terrain Hunter Complete Upper represents a refined platform purpose-built for precision hunting and long-range performance. Designed for shooters who demand accuracy without compromise, this complete upper assembly eliminates guesswork by delivering a factory-tuned, field-ready system that handles everything from open terrain to variable hunting conditions. Whether you're building your first precision rifle or upgrading an existing lower receiver, this upper combines proven Rock River Arms engineering with competition-grade components that prioritize shot placement over raw velocity.
At the heart of this platform sits an 18-inch stainless steel heavy match-grade barrel chambered in .223 Wylde, a caliber that accepts both 5.56 NATO and .223 Remington ammunition without sacrificing accuracy. The heavy barrel profile reduces harmonic vibration and thermal drift during extended shooting sequences—critical factors in precision work where consistency determines success. The 13-inch M-LOK handguard provides modern rail estate for mounting optics, lights, and accessories while maintaining a lightweight profile of just 6.2 pounds, allowing hunters to stay mobile in the field. Rock River Arms' Operator muzzle brake manages recoil impulse and muzzle rise, enabling faster target reacquisition between shots, while the black receiver finish offers low-profile durability in varied outdoor environments.
This complete upper pairs seamlessly with any mil-spec AR-15 lower receiver, making it an ideal upgrade path for those already invested in the platform or a standalone solution for new builds. Law enforcement marksmen, competitive shooters, and hunters appreciate the precision-focused architecture—the barrel's match-grade tolerances and heavy profile excel at 200+ yard engagements where hunting typically occurs. Installation requires only upper and lower receiver pins; no gunsmithing is necessary. The .223 Wylde chamber delivers the consistency of .223 Remington brass with the velocity ceiling of 5.56 NATO, offering flexibility for shooters who load their own ammunition or prefer commercial options.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
