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HK21 vs L4 Bren Gun
Side-by-side technical comparison
HK21
Other WeaponsDiscontinued
L4 Bren Gun
Other WeaponsDiscontinued
Overview
Spec
HK21
L4 Bren Gun
Production
1961–1980
1958–1970
Units produced
Unknown (tens of thousands)
Unknown (thousands converted)
Specifications
Spec
HK21
L4 Bren Gun
Overall length
1030 mm
1180 mm
Barrel length
450 mm
635 mm
Weight
9.0 kg
9.0 kg (unloaded)
Magazine capacity
Belt fed (100 round box)
30 (detachable box)
Action type
Roller-delayed blowback
Gas-operated, tilting bolt
Trigger type
Automatic only
Automatic only
Sights
Iron sights (diopter)
Iron sights (diopter rear)
Calibers
HK21
L4 Bren Gun