Shooting the HK21 Modular Machine Gun

Cool Forgotten Weapons merch The HK21 is a the beltfed iteration of the H K rollerdelayed blowback mechanism. H K built a wide range of firearms around that system, including submachine guns (MP5), rifles (HK33, HK91), precision rifles (PSG1), and machine guns. Originally they made a version in 5. 56mm and one in 7. 62mm, but later combined both guns into a single universal platform. The standardized receiver can be fitted with either magazinefeed or beltfeed mechanisms in either 5. 56mm or 7. 62mm, greatly simplifying H K s production and logistics. This is the 7. 62mm belt fed model, which was popular with clients like Portugal who used the G3 rifle but not the MG3 machine gun. It has a reputation for unrivaled reliability under terrible maintenance and harsh environments. The downside, however, is harsher recoil than most other guns I have used in its class. Many thanks to H K USA for providing me access to this