OVERALL LENGTH – 56.5 cm (22.25 in) Stock folded, 80 cm (31.5 in) Stock open
BARREL LENGTH – 27 cm (10.63 in)
RIFLING (TYPE & TWIST) – 6 Groove, Right hand twist, 1 turn in 41 cm (16 in)
BULLET DIAMETER – 11.46 mm (0.451 in)
BULLET WEIGHT – 15 g (230 gr)
MUZZLE VELOCITY – 280.4 m/s (920 fps)
MUZZLE ENERGY – 586 j (432 ft/lbs)
WEIGHT (EMPTY) – 2.94 kg (6 lbs 7.75 oz)
WEIGHT (LOADED) – 3.58 kg (8 lbs 18.3 oz) with 20 round magazine
SIGHTS – Front sight – blade, Rear sight Tangent aperture, adjustable from 50 to 300 yds in 50 (50 t0 100) and then 100 yd increments
EFFECTIVE RANGE – 183 m (200 yds)
OPERATION – Retarded blowback, fires on closed bolt
TYPE OF FIRE – Selective fire, Semi and Full automatic.
RATE OF FIRE – 40 rpm (Semi), 80 rpm (Full)
CYCLIC ROF – 500 rpm
FEED DEVICE – 20 round box magazine, double column, single feed, 12 round box magazine, single column, single feed
FEED DEVICE WEIGHT (EMPTY) – 12 round 0.17 kg (6 oz), 20 round 0.21 kg (7.4 oz)
FEED DEVICE WEIGHT (LOADED) – 12 round 0.43 kg (15.2 oz), 20 round 0.64 kg (1 lb 6.4 oz)
BASIC LOAD – 10 – 20 round magazines (200 rounds)
LOAD WT – 6.4 kg (14 lbs 1.8 oz)
MANUFACTURER – Harrington and Richardson (H&R) Arms Co., Worchester, Mass.
STATUS – Obsolescent
SERVICE – Limited military service with US Marine Paratroop units
This is a shortened version of the Reising M50 with a wire folding stock, pistol grip, and no compensator on the muzzle. The weapon was intended originally for US Marine Paratroop units but they found it had the same drawbacks of difficulty operating in a dirty environment, as the Model 50. The wire stock was also found to be serviceable, but relatively weak. Another difficulty was that there was no means to lock the stock in the open position. Unless held carefully, firing from the shoulder could prove inaccurate as the stock would start to fold while being used. It did find additional use with vehicle operators and mechanized troops, primarily for its availability and short overall length. Production of this version ceased altogether in 1945.
