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HCAR (Heavy Counter Assault Rifle) vs HK MP5SD
Side-by-side technical comparison
HCAR (Heavy Counter Assault Rifle)
Other WeaponsIn production
HK MP5SD
Other WeaponsIn production
Overview
Spec
HCAR (Heavy Counter Assault Rifle)
HK MP5SD
Production
2015–present
1974–present
Units produced
Limited
Unknown
Specifications
Spec
HCAR (Heavy Counter Assault Rifle)
HK MP5SD
Overall length
1,067mm (42 in) stock extended
790mm (31.1 in) stock extended
Barrel length
508mm (20 in)
146mm (5.7 in) — ported, inside suppressor
Weight
5.4 kg (12 lb) empty
3.5 kg (7.7 lb)
Magazine capacity
20 or 30-round detachable box
15 or 30 rounds detachable
Action type
Gas-operated, open bolt (auto) / closed bolt (semi)
Roller-delayed blowback, closed bolt
Trigger type
Selective fire
Selective fire (safe, semi, full auto or 3-round burst)
Sights
Full-length Picatinny rail for optics, backup iron sights
Hooded front post, adjustable diopter rear
Calibers
HCAR (Heavy Counter Assault Rifle)
HK MP5SD