HK MP5SD vs MG3

1974–present

1959–present

Unknown

Over 1,000,000 (including MG 42 production)

790mm (31.1 in) stock extended

1,225mm (48.2 in)

146mm (5.7 in) — ported, inside suppressor

565mm (22.2 in)

3.5 kg (7.7 lb)

11.5 kg (25.4 lb) with bipod

15 or 30 rounds detachable

50-round drum or continuous belt feed

Roller-delayed blowback, closed bolt

Recoil-operated, roller-locked delayed blowback

Selective fire (safe, semi, full auto or 3-round burst)

Full auto only

Hooded front post, adjustable diopter rear

Adjustable iron sights, optional optics