37mm launcher Thump and Grind kit by AWCY?

37mm Thump and Grind parts kit from Are We Cool Yet? 12 piece kit. No hardware included. Hardware can be obtained from local hardware store or kits from Parts Dispensed. Easier to assemble than NT79! Comes with 2 backplates for standalone to attach a stock or mounting to picatinny rail on a firearm. Sanding and fitting required. Awesome kit! https://odysee.com/@AreWeCoolYet:7/ThumpnGrind:1     Download this link for directions and parts list. 12.5 inches overall length before barrel install.