Ballista Folding Stock w/Adapter Fab-Defence. The FAB-DEFENSE Cobra folding buttstock provides a quick deployment and flexibility of use. You can carry the crossbow with the buttstock folded in most regular backpacks and deploy the stock within a fraction of a second. With FAB-DEFENSE Cobra you can take comfort and accuracy to the next level. Specifications for Ballista Folding Stock w/Adapter: Manufacturer: Ballista Color: Black Weight: 0.91 lb Fabric/Material: Aluminum Finish: Gloss Features of Ballista Folding Stock w/Adapter Compatible with BALLISTA BAT and BALLISTA BAT Reverse Easy installation Package Contents: Ballista Folding Stock w/Adapter Ballista BAL-AC-09-01: Folding Stock w/Adapter Fab-Defence