Knex M16a4/a2 With M203

This is the m16a4/a2 that ive been working on for a while. It doesn't get superb range because the trigger holds the ram really far forward and i have not really tried to get it to hold the ram back further yet. The M203 is a modded version of moxx's grenade launcher and it works pretty good. Overall this things pretty awesome in my opinion because its about the same size as the real m16a2 and it feels about as heavy as the real one...But there are some things i am gonna try to fix on it if people want me to post it...so if you have any comments or suggestions leave'em below

and because not all of this is mine credit to:
moxx for his grenade launcher
and to dutchwarlord for the carry handle 
and to knex gun builder for the main body of the gun