Can't swap out arrow.barrel in regular frame the way they designed it...I do think you can order a Redmans .172 barrel liner with a outside.OD of .312....Would be possible to have a slug.and arrow.shooter....The velocity of bolts shot from that carbine is almost like hunting with a recurve bow. What’s the weight of these air bolts? Which weight range is suggested to used with these sort air bolts? What sort of hunting is this gun marketed towards? Can a regular Talon barrel be swapped out for the arrow barrel?