custom made by me, designed them myself, buy em straight from the source. ask any questions you have, maybe you might get a discount! includes one drop stock adapter, one m5x20mm screw, one m5x50mm bolt, and one m5 nut (all the hardware you need to install it). not the gun, obviously. this drop stock lets you use paintball masks and aim down your sights without ridiculous risers or height over bore. all screws and hardware are included. all you need to do is take off your stock and buffer plate, then screw this thing on, and screw the buffer tube onto the adapter. my design is better and stronger than any other 3d printed drop stock out there, because it's reinforced with a 304 stainless steel bolt that goes the whole way through it. steel is stronger than plastic, but combine the two and you get this. printed with overture PLA+. people print real guns out of this stuff, it's that strong (not that I'd know anything about that, I would never). the only thing to even potentially worry about is to not leave it in the sun for more than an hour or leave it in your hot car. each one is made to order and will take 1-3 days to complete and be shipped out, depending on my work load. I can print in black, dark red, or white. if you somehow manage to break it and show me proof, I'll send you a new one for $5. that's only half the cost of shipping.