SI Viper Pit Minimalist Buttstock Color:black this hop up will improve

this hop up will improve accuracy and distance

Shooting mode: manual / full auto

Z68 Shrouded tailcap switch

1 "stuffit" expandable pouch

Soaking gel balls about 3-4 hours

SI Viper Pit Minimalist Buttstock Color:black this hop up will improveThe SI Viper Pit Minimalist Buttstock is your versatile and reliable solution for a custom fit. Designed to work with the Advanced Receiver extension, it offers a fitted feel and strong lock up. The ambidextrous QD swivels and 3 position adjustable feature add convenience and comfort for any shooter. Experience minimal wobble and maximum stability with this lightweight and durable butt stock. Features: 2 in 1 design can be used as an adjustable or