A Canadian made assault rifle based on the American M16. It is licence-built by Diemaco company of Canada. There is also a C8 and a C7A1

Like the M16A2, the C7 is a direct gas operated weapon, but it has full-auto and single-shot modes instead of the original three-round burst and single-shot modes of the M16A2. Other differences are simplified two-position aperture rear sight with only two settings. Barrel is crome-lined and rifled for SS109 (5.56mm NATO) ammunition.

The C7 was recently adopted by the British special forces. As well, it is used by the Danish and Netherlands armed forces.

Caliber: 5.56x45 mm NATO (.223Rem)
Action: Gas operated, rotating bolt
Overall length: 1020 mm
Barrel length: 510 mm
Weigth: empty, 3.3 kg; loaded, 3.9 kg
Magazine capacity: 30 rds