Simple M16 Buffertube for Adderini

cults3d

This is a simplyfied version of an M16 Buffertube matching both the Adderini and Mini Adder. As much as I like the adjustable / colapsible version of the shoulder stock, there a still some disadvantages: - Likely to break at the part going into the Adderini when you drop it (recently just did it myself ;-) - Requires more work (glue it together, sanding, etc) - Requires additional screws In order to make it simpler to print a "Buffertube" I simply remixed the Airsoft stock referenced in the Mini Adder build document (https://www.thingiverse.com/thing:2398544) and added a slightly different "head" for direct mounting the stock to an Adderini. Now you simply need to print out the part, glue in a 60 mm long piece of 12 mm tube and you are set to go. No multi part print, no glueing, etc. Of course this version is neither foldable, nor adjustable. The single part version (Buffertube_full.stl) will fit on the print bed of an Ender 3. For smaller printers such as a Prusa Mini the splitted version (Buffertube_split.stl) should work fine. Be shure to dryfit everything prior gluing the 12 mm tube into the Buffertube. The 12 mm tube as a pretty tight fit. For the screw which locks the stock into place usually a M4x35 mm Allen screw with a self-locking nut will do fine. Use a spring with at least 25 mm length. 30 mm would be better. I had some 0.8x8x25 mm springs laying around. This buffertube (similar to the one included with the Mini Adder) will fit most AR15 / M16-compatible stocks out there. Beside the Airsoft stock referenced in the Mini Adder build document (https://www.thingiverse.com/thing:2398544) you can either sniff around here at Cult3D where you will find some matching parts like this:https://cults3d.com/en/3d-model/various/stock-m16-ar15-m4-motion-airsoft Or simply search other 3D model sites such as thingiverse. There seem to be a ton of matching stocks for Nerf and Airsoft guns. Have fun and stay safe !