M14 Negative Adapter for the stock Beeman RS2 Air Rifle. Fits over the Stock
front sight. Doesn't do much due to the piston and spring being so loud lol.
Use a semi-fexible Filament. PLA does not flex enough for this to mount cleanly onto the rifle. I used the extra-strong Ninjatek Armadillo filament to make this, and it flexed just enough to get this over the sight and securely mounted to the barrel!
Print this, thread side down to minimize supports. 1.2mm thick walls. I've printed this using Ninjatek's Armadillo for that flexible fit, and strength parallel to the layer lines.
I've tried printing this in PLA but it was way too stiff to get over the barrel. ABS might work, but I have not tried it yet.
Let me know if you print this and if it works for you! :)