The MKE AP 51 (HG7887-N) is a compact powerhouse inspired by the legendary HK51 PDW. Chambered in 7.62x51mm, it features a 20-round G3-pattern polymer magazine. With an overall length of 23.3 inches, a width of 2.2 inches, and a height of 8.5 inches, the AP 51 maintains a balanced profile. It sports a cold hammer-forged chrome lined 8.3-inch barrel and weighs 7.9 lbs unloaded. Designed for versatility, the AP 51 includes a Navy-style assembly with an ambidextrous selector, an MP5-compatible wide handguard, a standard G3 trigger setup, and a birdcage-style flash hider.