K'nex IMI TAR-21

Hello fellow K'nexers. This is the TAR-21 that I made some weeks ago. I wanted to post it last week, but school got in the way. Anyway, about the gun. It's a model (sigh, I know, ANOTHER model). My next gun will be shooting. I haven't measured the length/heigth etc. so I don't know if it's exactly the same size. It seems about right according to the picture I used. It has some attachments (like extra mags, sights etc.). I made a RBG grenade launcher thingy for it with my last pieces. 
Some pro's and con's:
Pro:
- Good looks
- Comfortable
- Compact
- rails
- Folding Iron sights

Con:
- Model
- Front could use some work
- Not sure if it's the exact size