Barebones Carbine Buttstock (BCB) by FFFTech/FFFTechnology A buttstock designed to be small and extremely lightweight. At the very least, this stock allows the firearm to be shouldered and fired accurately. This design should be used if one is without a larger and(or) stronger stock. The buttstock is not designed to withstand high impact usage, though it is still plenty strong for basic firearm use and drops short heights. This buttstock is designed for Milspec Carbine Buffer Tubes only. Printer Used: Monoprice Maker Select Plus Filament Used: PLA+ Print Settings: Extruder: 204C Bed: 54C First Layer Print Height: .24mm Standard Layer Height: .20mm Wall Thickness: .40 Wall Perimeters: 4 Infill: 32% Infill Pattern: Gyroid Material Flow: 101% Support Percentage: 12% (Supports only needed for the set screw hole) Hardware Needed: 1x M8x8 Hex Socketed Set Screw Installation (Do I really need to explain this...) 1) Press the hollow socket of the buttstock on the end of the carbine buffer tube. 2) After making sure the set screw hole is lined up with the end of the adjustable stock channel, thread the set screw into the stock. Use purple Locktite on the set screw if you're worried about the screw backing out.