Nice build, I'm jealous as you guys in Canada get to have the short barrels.
I've built two ARs now and looking for an excuse to build another as it can be addicting. I'm not really saving much money building them as complete ARs have come down in price here in the US now.
I built the first one without any special tools but bought the tools from Brownells for the second one and it went much easier. I highly recommend them.
My first is a DPMS M-4 copy with a Burris 3X red dot on it. The second is a S&W lower with a Rock River mid lenght upper and an EOTech sight. Both are 16 inch barrels, our minimum lenght here. Sorry no pictures as my camera is broken.
I'm thinking my third build may be a coyote gun and maybe 6.8 caliber. I have a couple friends with them and they love the cartridge.