CODE – 02-041-992

NAME – MP5/40A3

COUNTRY OF ORIGIN – Germany

DATE OF MANUFACTURE – 1992

CALIBER – 10.2×21.6 mm (.40 Smith & Wesson)

OVERALL LENGTH – 49 cm (19.29 in) Stock collapsed, 66 cm (25.98 in) Stock extended

OVERALL LENGTH WITH SUPPRESSOR MOUNTED – 66.1 cm (26 in) Stock collapsed, 83.1 cm (32.72 in) Stock extended

BARREL LENGTH – 22.5 cm (8.85 in)

SUPPRESSOR LENGTH – 19.1 cm (7.50 in)

SUPPRESSOR DIAMETER – 3.5 cm (1.375 in)

RIFLING (TYPE & TWIST) – 4 Grooves, Right-hand twist, 1 turn in 38 cm (1 turn in 15 in)

BULLET DIAMETER – 10.2mm (0.400 in)

BULLET WEIGHT – 11.66 g (180 grain)

MUZZLE VELOCITY – 358 m/s (1174 fps)

MUZZLE ENERGY – 747 j (551 ft/lb)

WEIGHT (EMPTY) – 2.85 kg (6 lb 4.5 oz)

WEIGHT (LOADED) – 3.45 kg (7 lb 9.7 oz) with 30 rounds

WEIGHT (LOADED) WITH SUPPRESSOR – 4.05 kg (8 lb 14.9 oz) with 30 rounds

SUPPRESSOR WEIGHT – 0.43 kg (15.2 oz)

SUPPRESSOR MOUNTING – Threads to muzzle, 14mm x 0.75 tpi right-hand thread

SUPPRESSOR OPERATION – Two-stage, expansion chamber, 7-baffle stack

SUPPRESSOR DECIBLE REDUCTION – 38 db (Wet) or 28 db (Dry) down from 157 db

SIGHTS – Open iron, adjustable, Front – Ring-protected fixed blade, Rear – Rotating vertical drum with 4 peep apertures of varying size, Adjustable for windage and elevation, Factory zeroed to 25 m (27 yards)

EFFECTIVE RANGE – 200 m (219 yards)

OPERATION – Roller-delayed blowback, fires from closed bolt, hammer fired

TYPE OF FIRE – Selective, Semiautomatic, Full automatic

RATE OF FIRE – 40 rpm Semiautomatic, 120 rpm Full automatic

CYCLIC ROF – 800 rpm

FEED DEVICE – 30-round translucent, plastic box magazine, Double column, Double feed with metal feed lip inserts

FEED DEVICE WEIGHT (EMPTY) – 30-round – 0.113 kg (4.0 oz)

FEED DEVICE WEIGHT (LOADED) – 30 round – 0.60 kg (1 lb 5.6 oz)

BASIC AMMUNITION LOAD – Six 30-round magazines (180 rounds)

LOAD WEIGHT – 3.6 kg (7 lb 15 oz) .40 S&W

MANUFACTURER – Heckler & Koch GmbH Oberndorf am Necker, Germany

STATUS – Out of production in 2000

SERVICE – Law Enforcement use, commercial sales.

      This is almost exactly the same weapon as the MP5/10A3 except for being chambered for the .40 Smith & Wesson round rather than the 10mm Automatic.

     There are also A5 versions of these weapons with two or three-round controlled burst trigger packs. The bolt catch of the MP5/10 and MP5/40 weapons prevents the sliding stock from being exchanged with the MP5. The same holds true for the trigger packs. The MP5 may use stocks and trigger groups from the MP5/10 or 40 series, but the reverse is not true.