http://diemaco.com/ -> Products -> C7A1
From the Canadian Army website (some of this was listed on the diemaco site a while back too)
"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.
Armament:
Cartridge: 5.56mm x 45mm NATO
Rate of Fire: cyclic, 700 to 940 rounds per minute
Magazine: 30 rounds
Specifications:
Weight: empty - 3.3kg, full - 3.9kg (not including M203A1 grenade launcher)
Length: normal butt, 1.0 m
Barrel Length: 530
Operation: direct gas operated, air cooled, magazine fed
Range: 400 m
Entered service : 1986"
I'm not sure if anyone uses the A3 in particular but either way...
PS The M16A1 is full auto capable as is the A3 see
http://www.isayeret.com/weapons/assault/m4/m4.htm and such for more. Perhaps you miss understood which version it was when you were training...
Edit: You know Januty I really think you need some Samuel L. Jackson quotes in .wav form so you can attach them to your posts and have everyone hear what you are saying... (like this
http://www.ebaumsworld.com/sjackson.html)