|PSE's TAC-15 crossbow turned the AR-15 rifle into a ultimate killing weapon between crossbow and rifle! Avatar Tonic writes:
"TAC-15 'Tactical Assault Crossbow', the sort of crossbow designed for when aliens invade from another dimension. It actually replaces the upper receiver from an AR-15 so you can swap between assault rifle and crossbow with a little tinkering. The payoff is at the end when they sell you that it comes with a picatinny rail system. For, you know, when you need a grenade launcher on your crossbow."
Watch the video, here.