OVERALL LENGTH WITHOUT STOCK – 59.7 cm (23.5 in) with Cutts Compensator
OVERALL LENGTH WITH STOCK – 83.8 cm (33 in) with Cutts Compensator
STOCK LENGTH – 33.1 cm (13.05 in)
BARREL LENGTH – 31.8 cm (12.5 in) with Cutts compensator
WEIGHT (EMPTY) WITHOUT STOCK – 3.65 kg (8 lb 0.8 oz) with Cutts Compensator
WEIGHT (EMPTY) WITH STOCK – 4.45 kg (9 lb 13 oz) with Cutts Compensator
WEIGHT (LOADED) WITHOUT STOCK – 5.91 kg (13 lb 0.5 oz) with Cutts Compensator, loaded with 50-rd Type L drum
WEIGHT (LOADED) WITH STOCK – 6.71 kg (14 lb 12.7 oz) with Cutts Compensator, loaded with 50-rd Type L drum
STOCK WEIGHT – 0.80 kg (1 lb 12.2 oz)
SIGHTS – Open, iron, adjustable, Front sight – Blade, Rear sight – Folding ladder peep sight, Graduated to 548.6 m (600 yds) in 23 m (25 yd) increments, Battle sight square notch, set to – 46 m (50 yds)
EFFECTIVE RANGE – 182.9 m (200 yds)
OPERATION – Delayed blowback with Blish principle, fires from open bolt
TYPE OF FIRE – Selective, Semi and Full automatic
RATE OF FIRE – 50 rpm (Semi), 70 rpm (Full using 20 rd magazines), 100 rpm (Full using 50 rd drums)
CYCLIC ROF – 800-900 rpm
FEED DEVICE – Type XX 20-round removable box magazine, double-column, double feed, Type L 50-round and Type C 100-round drum magazines
FEED DEVICE WEIGHT (EMPTY) – Type XX 20-rd 0.17 kg (6 oz), Type L 50-rd 1.18 kg (2 lb 9.6 oz), Type C 100-rd 1.64 kg (3 lb 9.9 oz)
FEED DEVICE WEIGHT (LOADED) – Type XX 20-rd 0.60 kg (1lb 5.2 oz), Type L 50-rd 2.26 kg (4 lb 15.7 oz), type C 100-rd 3.79 kg (8 lb 5.7 oz)
BASIC LOAD – One Type XX 20-rd mag, 2 Type L 50-rd drums (120 rounds)
LOAD WT – 5.12 kg (11 lb 4.6 oz)
MANUFACTURER – Colt Patent Fire Arms Manufacturing Company Hartford, Connecticut.
STATUS – Obsolete
SERVICE – Limited US Service with US Post Office and US Marines, Greater service with Law enforcement agencies, both Federal and Local. Commercial sales.
This model became available in 1926 after the Cutts muzzle compensator had been developed and adopted by the Auto Ordnance Company. The compensator was attached to the barrel of the weapons (at the factory). The four slots cut across the top third of the compensator deflected muzzle blast gases upwards and helped to hold the barrel of the weapon down against climbing on full automatic fire. Addition of the Cutts Compensator adds 0.08 kg (2.8 oz) to the overall weight of the weapons and 5.08 cm (2 in)