Oh man, one of these along with filling the zippered outside pouch with spare mags and an integrated suppressed barrel (same length oal) and you would have a GREAT firearm.
I am not a fan of the integrated silencers. Cleaning seems like it would be a pain. I just want to get the barrel threaded and add a scope and bipod. Of course fill the lower pocket of the bag with mags and rounds and put my 22/45 in the top pouch. The Sparrow will either go in a pouch or be strapped to the Molle webbing in its own pouch.