M16A4

Funco's best friend, who nicknames her Fucco due to a spelling mistake. She has an energetic personality and a foul mouth with Osaka dialect, but is very kind. She is very delicate to the point of requiring frequent maintenance and is picky on what she eats representing her namesake's unreliability. She is an American M16A4 assault rifle (her name stands for "16") and has a large number of fans, as she is usually photographed for the cover of specialized gun magazines and this cohere with the real M16 which is very famous around the world (Second to AK-47 in terms of production number; see Comparison of the AK-47 and M16). In non-combat action, she tends to rapidly alternate between bursts of activity and sudden rests, relating to her namesake's three-round burst fire only capacity.

Type: Assault rifle
Place of origin: United States

Cartridge: 5.56x45mm NATO
Action: Gas-operated, rotating bolt (direct impingement)
Rate of fire: Approx. 700-900 rounds/min
Feed system: 30-round detachable STANAG magazine
Muzzle velocity: 948 m/s
Length: 999 mm
Weight: 3.770 kg

(Source: Ichiroku's title card as seen on IMFDB, Real M16's specs on Wikipedia)