Hk21 Completly Auto Belt Fed Machine Gun

7.62x51 HK21E Belt-Fed Machine Gun: 100 Rounds Off-Hand Shooting

HK-21 machine gun

Hk21 full auto belt fed machine gun

HK21 Full Auto Belt Fed Machine Gun

HK 21 .308 Beltfed Machine Gun

HK21 308 beltfed machine gun

HK21 200 ROUNDS

HK21 Full Auto

HK21 Completly AUTO Belt Fed MACHINE Gun

Intense Belt Dump With HK-51 Bravo

H&K's Light Machine Guns: Rare but Effective (HK21/23 & HK11)

HK21 BELT LOADING WITHOUT STARTER TAB. RDTSMFG HK21EUG #HK21 #rdtsmfg #ralphsr

Belt-fed HK Machine Guns: MM23e and MM21e

HK21 Machine Gun

HK21.....more testing...

American Sub Gunner

BELTFED G3 (Hk21) aka the RAPP H in 1 min #Shorts

Shooting HK21 Full Auto Belt Fed Machine Gun

HK MM21E

HK Range Day: HK21

Shooting the HK21 Modular Machine Gun

Forgotten Weapons