Heckler & Koch's Modular Machine Gun: The Hk21E

Heckler & Koch's Modular Machine Gun: the HK21E

Forgotten Weapons

Shooting the HK21 Modular Machine Gun

Forgotten Weapons

HK-21 machine gun

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

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

The HK21E, HKs best Beltfed

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

HK21

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

JECIII Michael's Machines MM21e (HK21e) 308 belt dump. Machinegun Rainbow

JEC III, LLC- Lightning Link Connoiseur

HK 21 .308 Beltfed Machine Gun

PKM and HK21E

Belt-fed HK Machine Guns: MM23e and MM21e

HK21e up and runnin

Alex the Gunsmith

HK11A1/HK21A1 DEMILL COMPATIBLE WITH HK21E/23E FEED MECHS & CARRIERS

Heckler & Koch (HK) 21E, 7.62x51mm belt-fed machine gun

JECIII Lost River Machine gun shoot 2022 Sept buddy shooting HK21 full auto tracers at night.

JEC III, LLC- Lightning Link Connoiseur

HK Range Day: HK21

HK21.....more testing...

American Sub Gunner

Shooting Sound Of HK 21 Machine Gun#Shorts