The file 'Deathproof Duck Picatinny Rail Cover 3D Printer Model' is (stl,thing) file type, size is 6.5MB.
Using Gamebox13's (https://www.thingiverse.com/gamebox13/about) Convoy/Deathproof Duck I added it to a picatinny rail just for fun.
AR15_Picatinny_Cover.stl | 431.4KB | |
convoy_duck.stl | 2.2MB | |
Deathproof_Duck_Picatinny_Rail_Cover.stl | 10.5MB | |
Deathproof_Duck_Picatinny_Rail_Cover.thing | 1.8MB |