HK11E, HK21, HK21E & HK23E

Parts here are designed for HK HK11E, HK21, HK21E & HK23E machine gun models chambered in 7.62x51mm / .308 Win or 5.56x45mm / .223 Rem unless otherwise noted. MGW offers replacement sights, catches, springs, pins and other small parts for these select-fire guns made in the 60's to present day. Outfit your Heckler & Koch HK11E/HK21/HK21E/HK23E with quality OEM and aftermarket parts and components to ensure reliable performance from every shot.