I'm not sure if the MAC-11 you just modeled is the final modeled version or not, but it looks as if you have a few n-gons in there (ex. the aiming sight at the front of the gun, the front of the barrel). Also, if you keep parts of the gun separate to model and combine them later on, it'll save you a few headaches when it comes time to texture. Just my two cents.
Revol6
I wanted to ask,is the sheriff gonna appear in project nexus (maybe in hank's prequel)?
Also,why did you update here instead of doing so in the teammadness tumblr?