HK(R) MR762 A4 is a semi-automatic AR-style pistol chambered in 7.62x51mm NATO. It features a 13 in cold hammer-forged threaded barrel adjustable gas piston operating system and a black forged aluminum receiver with Picatinny rail. This pistol uses a 20-round magazine and features an M-LOK handguard pistol buffer tube ergonomic grip and ambidextrous controls.Key Features13 in cold hammer-forged threaded barrel chambered in 7.62x51mm NATOSemi-automatic operation with 20-round magazine capacityAdjustable gas piston operating system with birdcage flash hiderBlack forged aluminum receiver with Picatinny rail and M-LOK handguardPistol buffer tube with ergonomic grip and ambidextrous controlsHK(R) firearms are recognized worldwide for durability engineering precision and service reliability. Designed to meet military and law enforcement standards HK pistols deliver consistent performance trusted by professionals and civilian shooters alike.