HK MP-5SD3

Caliber: 9x19mm Parabellum (also .40S&W and 10mm Auto) Weight, empty: 2.54 kg Length: 680 mm Barrel length: 225 mm Rate of fire: 800 rounds per minute Magazines: 30 rounds

While all of MP-5 can be fitted with silencers, there also a dedicated silenced version of MP-5, called MP5SD2 or SD3 (depending on the stock type). This version is equipped with non detachable integral silencer, and the vented barrel, to reduce the bullet muzzle velocity down below the speed of sound. The MP-5SD is intended to fire standard 9mm ammunition, not the special subsonic one.