This is a Lego Benelli m4 semi-auto shotgun. It has a removable stock and working bolt and trigger. the bolt goes back as the trigger is pulled and then  moves forward as seen in the video and if anybody wants a tutorial just ask. It also is regulation with a 18 inch barrel and one to one scale.
If you look really close you can tell that second picture isn't a Lego gun
The second picture was to show what the real thing looks like not that it is lego
Nice <br>
Make a tutorial please :-)
look at mine is shoots blocks
AMAZING! if it shoots bricks, i want one :D i voted too :3
cool gun ! <br>will you be posting ?
Maybe do you want one?