Really looks like cobble job personally tape all over it ? It looks to be flat op version of the m16 style rifle full length with a bunch crap hang off the end and an elcan not that great but to each there own.Here you go it is a c-7 basic same issue piece trash the military here is issued with a flat top and a elcan.
http://en.wikipedia.org/wiki/Colt_Canada_C7_rifle