The HK MR762 A4 is a semi-automatic 7.62x51mm NATO rifle built on Heckler & Koch's renowned AR-10/MR-series platform. This particular model features a 16.5" cold-hammer-forged barrel with a 5/8"x24 muzzle thread, making it compatible with a wide range of muzzle devices. Included is a 10-round detachable magazine that feeds reliably through its polished chamber and HK's proven short-stroke piston system. The rifle's upper receiver sports a full-length Picatinny rail, and the handguard incorporates M-LOK slots for modular accessory mounting. It comes equipped with a 9-position adjustable synthetic stock for personalized length of pull. The MR762 A4 is engineered for sub-MOA accuracy, durable reliability in rugged conditions, and easy integration of suppressors or brakes. It's an excellent precision/tactical rig for serious shooters, law enforcement, or professionals seeking battle-tested performance. Caliber & Operation - Chambered in 7.62x51mm NATO, utilizing HK's reliable short-stroke piston system. Barrel Specs - 16.5" cold-hammer-forged barrel with 5/8"x24 threads for muzzle attachments. Feeding - Ships with a 10-round HK magazine; compatible with standard AR-10/MR magazines. Rail & Accessory Mounting - Full Picatinny top rail and M-LOK-enabled handguard for optics and accessories. Stock - Adjustable 9-position synthetic stock with ambidextrous sling points. Accuracy - Factory-spec accuracy of approximately 1 MOA, ideal for precision and tactical use. Durability - Cold-hammer-forged barrel and robust piston design built for long-term reliability. Muzzle-Ready Platform - Threaded barrel ready for flash hiders, brakes, or suppressors. Overall, the MR762 A4 blends precision, modularity, and rugged HK engineering into a compact 16.5" package—making it a top-tier choice for professionals and enthusiasts in the 7.62 NATO class. Heckler & Koch HK MR762 A4 7.62mm 16.5" 5/8"x24 Bbl Rifle w/(1) 10rd Mag 81000830