Recently I completed a LEGO life-sized version of my favorite gun in any Halo game: the shotgun. While the Reach version isn’t the best performance-wise, it’s the best aesthetically IMO.
Working features I included are trigger, working pump, loadable shells, pump action shell ejection.
Anyway, here’s some links!
View on Flickr | View on Mocpages | YouTube video showing the working features
Thanks for viewing!
Nice! I love it, how long did it take you?
> Nice! I love it, how long did it take you?
Thanks! It took almost two months to make.
that’s dedication, btw that looks awesome
Lovely work, but why did you have to resort to cutting the plastic pieces for the handle? 
> Lovely work, but why did you have to resort to cutting the plastic pieces for the handle?
No parts were cut. I would never cut pieces. They’re glued on. While on display the entire model would hold together without glue, to use the functions parts needed to be glued.
Oooh, okay. It looked cut to me, so I guess that’s the best compliment that I can give you, the fact that I thought that you modded your Lego to make the shape as realistic as possible. Neat stuff being able to do what you did without cutting any Lego pieces up 
I recently bought myself the Megablocks Phantom set. God it’s huge. It’s taken me an entire day so far building it D:
Amazing. Ended up watching all your videos!
Ooo! Will you mary me? http://m.kotaku.com/5900200/some-guy-built-a-11-replica-halo-shotgun-out-of-lego/gallery/