LWRC ICMKII 5.56 NATO 16.1" - AR-15 Rifle

Mil-spec is where the LWRC ICMKII 5.56 NATO 16.1" starts, not where it stops. Chambered in 5.56 NATO and built with components selected for performance rather than cost, this is an AR-15 that earns its price.

The LWRC ICMKII 5.56 NATO 16.1" brings 5.56 NATO capability to a semi-automatic AR-15 rifle, using a short-stroke piston operating system designed for dependable function in any condition.

Duty-Grade Reliability: Every component is selected and tested to perform under sustained fire, adverse weather, and the kind of use that reveals flaws in lesser designs. This 5.56 NATO platform is built for the worst case.

Precision From the Factory: Tight manufacturing tolerances and premium barrel specifications deliver consistent, sub-MOA-capable accuracy that holds up as round counts climb into the thousands.

Trusted by Professionals: This platform or its commercial equivalent is actively used by military, law enforcement, and special operations units who select their equipment based on performance, not marketing.

Lifetime Investment: Premium materials and construction mean this rifle will outlast budget alternatives by a significant margin — a firearm that genuinely improves with a proper maintenance schedule.

• Caliber: 5.56 NATO
• Barrel Length: 16.1"
• Gas System: Short-Stroke Piston
• Handguard: Free-Float
• Muzzle Threading: 1/2x28
• Magazine Capacity: 30 Round
• Finish: Type III Hardcoat Anodized
• Origin: Made in the USA

Drop-in compatible with mil-spec AR-15 lower receivers. Takes standard STANAG magazines chambered in 5.56 NATO and works with the full range of AR-15 accessories and aftermarket upgrades.

Machined from 7075 aluminum and coated with Type III Hardcoat Anodized, the receiver set offers durable protection against wear and environmental exposure while maintaining precise fit between components.

A legitimate duty-grade choice for law enforcement, military, and serious civilian users. Equally capable in competitive environments and demanding professional roles.

LWRC is the benchmark for short-stroke piston AR-15 rifles — their operating system runs cooler and cleaner than direct impingement designs, and is trusted by law enforcement and military users worldwide. Made in the USA.