NAME – HK – Offensive Handgun Weapons System Submission
COUNTRY OF ORIGIN – Germany
DATE OF MANUFACTURE – 1992
CALIBER – 11.43x23mm – (.45 ACP)
OVERALL LENGTH – 24.5 cm (9.65 in) without suppressor
OVERALL LENGTH – 39.9 cm (15.71 in) with suppressor
SUPPRESSOR LENGTH – 16.8 cm (6.61 in)
SUPPRESSOR DIAMETER – cm ( in)
BARREL LENGTH – 14.9 cm (5.87 in)
RIFLING (TYPE & TWIST) – 6 Groove, Right-hand twist, 1 turn in 25 cm (9.84 in)
BULLET DIAMETER – 11.46 mm (0.451 in)
BULLET WEIGHT – 15 g (231 grains)
MUZZLE VELOCITY – 270 m/s (886 fps)
MUZZLE ENERGY – 546 j (403 ft/lb)
WEIGHT (EMPTY) – 1.210 kg (2 lb 11 oz)
SUPPRESSOR WEIGHT – 0.608 kg (1 lb 5.5 oz)
WEIGHT (LOADED) – 1.577 kg (3 lb 8 oz) loaded with 12 rounds M1911 Ball
WEIGHT (LOADED) – 2.185 kg (4 lb 14 oz) loaded with 12 rounds M1911 ball, with suppressor
WEIGHT (LOADED) – 2.395 kg (8 lb 4.5 oz) loaded with 12 rounds M1911 ball, with suppressor, LAM
SIGHTS – Open, iron, adjustable for zero, Front sight – Square blade on dovetail base with white or luminous tritium dot, Rear sight – Square notch on dovetail base with two white or luminous tritium dots
LASER AIMING MODULE (LAM) – Halogen lamp – 30 cm (11.8 in) circle at 25 m (27 yards), Visible red laser Class 3A
Initial development of this pistol had 30 samples in the United States for testing on 28 August, 1992. During the Phase II of the contract, and additional 30 weapons, with suggested improvements, were produced by 28 November, 1994