Silverback TAC-41 with Stalker mods!

Now selling extremely quiet Silverback TAC-41!Inside is Stalker piston, hop-up and also innerballer which brand I cannot remember. Everything in the picture is included; scope, extra magazines, springs, hop-up parts, longer outer barrel and also jar of BB's (0.45). Shooting around 2.5 joules currently. I personally don't have interest playing with this anymore which is why I'm selling it.