Maker: Tokyo Marui
Model: No. 57
Release year: 1998
Gun name: M4A1
Gun type: Automatic Electric Gun, w/ Hop-Up system
Motor type: EG1000
Gearbox: version 2
Battery: 8.4v mini
Gun length: 760mm (840mm w/ stock fully extended)
Barrel length: 364mm
Gun weight: 2980g (including battery)
Calibre: 6mm BBs
Magazine capacity:
- standard: 80 round short or 68 round long
- hi-cap: 190 round short or 300 round long
Muzzle velocity: 90 m/s (w/ light-weight BBs)
Rate of fire: 700~850 rpm (w/ 8.4v battery)
Base width: 20mm
Price: 31,800 yen
Maker: Colt
Model number: RO977
Gun name: M4 5.56mm Carbine
Gun type: assault carbine
Gun length: 33 in (83.8 cm) [stock extended]
- 29.8 in (75.7) [stock retracted]
Barrel length: 14.5 in (36.8 cm)
Gun weight: 5.9 lb (2.69 kg) [w/o magazine)
Calibre: 5.56x45mm
Magazine capacity: 20 or 30 rounds
Muzzle velocity: 2900 ft/sec (884 m/sec)
Rate of fire: 700~950 rpm
Base width: NATO standard specification (STANAG)