This $19.50 EA-II Mechanical Mod - red ring / 510 telescopic pin at FastTech - Worldwide Free Shipping even though it can't be kicked easily, is indestructible. I like my inexpensive FT mods. All parts on most Nemeses are replaceable. Once you get batteries and a charger, the inexpensive mechs are a much better option than the ones with built-in batteries. Why buy something with internal electronics when all you need to do is drip in a kick (which is replaceable)?
I have the EHPro version of that, and it kicks fine with an 18650.