Goatguns
Goat Guns specialize in 1:3 scale replicas of your favorite firearms. They laser scan the real thing and shrink the parts, make them in metal to capture all the detail and feel then make sure many of the parts function! What? Yep, the trigger pulls, you can cock them, change out accessories like silencers and scopes and even load the magazines with brass rounds. They are fun to assemble and only take about 10 to 15 minutes to do so. Alas, they don't actually shoot, but short of that, they do everything else. They weigh 8-14 oz and are as long as 14". Now you can own a full collection of history's greatest rifles at a fraction of the cost. Upgrade that man cave. They even include a display stand.
As a side note, they are great alternatives to begin teaching young adults and some children about guns and their safety and function. Best for 13 years and up, we had a blast running around the office with them.