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

The Rock River Arms AR1900 LAR-15M Assurance-C Carbine 5.56x45mm NATO 16″ 30+1, Black, RRA Operator Stock & Hogue Grip, Carrying Case is a ready-to-shoot platform for new shooters and families. It pairs a chrome-moly vanadium barrel with a carbine-length gas system and a lightweight quad-rail handguard. The RRA Operator stock and Hogue grip offer a stable, comfortable hold for learning fundamentals. This carbine ships with a padded carrying case, keeping everything organized for range trips or storage.

Key Features

• 16″ CMV barrel with carbine-length gas system: Why it matters — chrome-moly vanadium steel provides long service life and resists heat, while the carbine gas system cycles reliably with standard 5.56 loads, making it forgiving for new shooters.
• RRA CAR lightweight quad-rail handguard: Why it matters — this free-float rail gives you 360 degrees of Picatinny space for lights, lasers, or a vertical grip, yet keeps the front end light for younger or smaller shooters.
• RRA Operator stock: Why it matters — six-position adjustable length-of-pull lets you fit the rifle to different-sized family members, from teens to adults, without tools.
• Hogue rubber grip: Why it matters — the soft, textured rubber reduces hand fatigue during long range sessions and gives a secure hold even with sweaty hands.
• Includes padded carrying case: Why it matters — protects your investment during transport and storage, and keeps magazines, ear pro, and tools organized in one bag.

Who It’s For

This carbine is built for families who want a reliable, easy-to-shoot AR-15 for target practice, home defense, or introducing new shooters to the platform. The adjustable stock and comfortable grip make it a great fit for youth shooters and beginners. If you value a complete package with a case and proven components, this is a solid choice.

Pros & Cons

• Pro: The CMV barrel and lightweight rail keep the rifle balanced and durable — per Rock River Arms specs, the 1:9 twist rate stabilizes 55-62 grain ammunition well, which covers most practice and varmint loads.
• Con: The carbine-length gas system produces a slightly sharper recoil impulse than a mid-length system, which some new shooters may notice during longer sessions.
• Pro: The included carrying case adds real value — you don’t need to buy a separate bag, saving about $40-60.
• Con: The quad-rail handguard is heavier than modern MLOK designs, adding about 0.3 lbs to the front end.

Comparison with Competitors

According to NSSF data, over 60% of new AR-15 buyers in 2025 chose a complete rifle under $1,200. The Rock River Arms Assurance-C fits that budget while still delivering a quality barrel and furniture.

FAQ

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Last updated: April 2026