Rock River Arms LAR-15M Assurance-C Carbine 5.56x45mm NATO 16" 30+1, Black, RRA Operator Stock & Hogue Grip, Carrying Case AR1900

Rock River Arms LAR-15M Assurance-C Carbine — 5.56×45mm NATO, 16", 30+1 — Black, RRA Operator Stock & Hogue® Grip, Carrying Case (AR1900 | UPC 842834100880) Dependable, accurate, and duty-ready—the Rock River Arms LAR-15M Assurance-C Carbine is a no-nonsense 5.56 that blends proven AR-15 engineering with Rock River’s quality control and field-smart ergonomics. The heart of the rifle is a 16" barrel paired with a free-float handguard (model/configuration dependent) and a tuned gas system for smooth cycling and consistent performance. Outfitted with the RRA Operator Stock for a solid cheek weld and a grippy Hogue® pistol grip, the 30+1 Assurance-C (model AR1900) ships in a carrying case—so you can go from counter to range with confidence. Why Choose the LAR-15M Assurance-C? Battle-Proven Caliber: Chambered in 5.56×45mm NATO, the Assurance-C also runs .223 Remington (with appropriate ammo), giving broad ammunition flexibility for training, defense, and ranch duty. Reliable 16" Carbine Length: The classic barrel length delivers dependable velocity, manageable recoil, and quick handling—ideal for home defense, patrol, and general-purpose carbine work. Rock River Build Quality: Tight receiver fit, quality barrel extension, and attention to detail result in repeatable lock-up and practical accuracy with common 55–77gr loads. Ergonomic Advantage: The RRA Operator Stock offers multiple length-of-pull settings and a stable cheek weld, while the Hogue® grip provides traction in rain, sweat, or gloves. Range-Ready Package: Arrives with a carrying case—just add optics/irons and zero. Note: Specific handguard type, muzzle device, and trigger configuration may vary by production lot or distributor. Confirm current specifications with your retailer. Key Features & Specifications Model: LAR-15M Assurance-C Carbine Part Number: AR1900 UPC: 842834100880 Caliber: 5.56×45mm NATO (accepts .223 Rem) Capacity: 30+1 (STANAG-pattern magazines) Barrel: 16" steel, threaded muzzle (verify thread pitch/muzzle device) Upper/Lower: AR-15 pattern aluminum receivers, black finish Stock: RRA Operator Stock (adjustable LOP; cheek-friendly design) Grip: Hogue® overmolded pistol grip Handguard: Free-float (M-LOK®/rail style depends on configuration) Trigger: Mil-spec or enhanced (varies by lot) Included: Carrying case; magazine(s)/accessories may vary by distributor Performance You’ll Notice Smooth, Trackable Impulse: The 16" system and proper gas tuning help keep the sight picture stable for faster follow-ups. Practical Accuracy: From 50-yard drills to 300-yard steel, expect consistent groups with quality training and defensive ammunition. Reliable Cycling: Built to run across a range of 5.56/.223 loads with proper lubrication and magazines. Ideal Use Cases Home & Property Defense: Quick handling, reliable chambering, and accessory-ready layout. Training & Carbine Courses: Durable components that thrive under high round counts and daily dry-fire. Ranch/Truck Rifle: Weather-resistant finish and trusted 5.56 ballistics for everyday utility. General-Purpose Carbine: A flexible platform ready for optics, white lights, slings, and mission-specific accessories. Optics & Accessory Pairings Optics: Red dot or LPVO (1–6× / 1–8×) for speed with reach; confirm mount height for your preferred cheek weld. Muzzle Device: Flash hider, comp, or brake (verify thread pitch); re-zero after installation. White Light & Sling: Add a quality light on the free-float handguard and a two-point QD sling for positional stability. Magazines: Use reputable STANAG mags (PMAG®, Lancer®, USGI) and rotate duty mags to preserve spring life. Setup Tips (Non-Instructional) Zero Smart: Start with a 50/200 or 100-yard zero, then confirm at intermediate distances for accurate holds. Ammo Testing: Try 55–62gr for training and evaluate 62–77gr OTM/defense loads for your chosen application. Torque & Witness: Torque optic mounts and critical fasteners to spec; add paint-pen marks for quick checks. Maintenance Rhythm: Keep the BCG lubricated during long range days; inspect gas-block and handguard fasteners periodically. Care & Maintenance Bore/Chamber: Clean with quality solvent and patches; protect the crown and feed ramps. Bolt Carrier Group: Lube generously for classes and cold-weather reliability; inspect gas rings and extractor tension as part of your routine. Hardware Audit: Re-verify optic, muzzle device, and handguard screws after your first high-round-count session. What’s in the Box* Rock River Arms LAR-15M Assurance-C Carbine (5.56 NATO) Carrying case Owner’s manual; magazine(s)/lock/accessories vary by distributor *Always confirm the exact bill of materials with your retailer. SEO-Friendly Search Terms Rock River Arms LAR-15M Assurance-C, AR1900, 842834100880, 16" 5.56 NATO AR-15, RRA Operator Stock carbine, Hogue grip AR-15, free-float 5.56 carbine, Rock River AR with case, reliable home defense AR-15, general purpose AR-15 30+1. Rock River Arms LAR-15M Assurance-C Carbine — 5.56×45mm NATO, 16", 30+1, Black with RRA Operator Stock & Hogue Grip (AR1900 | 842834100880): a trustworthy, accuracy-minded AR-15 that’s ready for training days, property duty, and home defense—right out of the case. The End