Canadians have the C7, a rip-off of the American M16. Major difference is that the C7's have no plastic parts and is more durable.
No we don't use the c7 we use the version above that Lol the c7a1 assault rifle
"The C7A1 assault rifle is an improved version of the basic C7 combat rifle, incorporating a low-mounted optical sight. It is a Canadian adaptation of a U.S. firearm known as the M16A1E1. The C7A1 eliminates the carrying handle of the C7 and substitutes an optical sight. The weapon is equipped with a 3.5x optical sight, which is mounted in place of the carrying handle.
C7A1 rounds are 5.56 x 45 NATO standard. The weapon has an effective range of 400 metres and a rate of fire of 700 to 940 rounds per minute. Along with the optical sight, optional attachments include the M203A1 40mm grenade launcher, the AN PAQ 4 Laser pointer and the Image Intensification Night Sight (Kite sight). It has been in service with the Army since 1986."