LUA Plugin:
https://www.gta5-hub.com/tools/lua-plugin-for-script-hook-v
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UPDATE:
Just changed the keybind to L. Sorry I didn't realize backspace was used by all the trainers. For anyone who wants to change the keybind themselves just open the file in Notepad and change all instances of "Keys.L" to what ever you want.
UPDATE 2:
Changed it so you actually drop the weapon instead of it disappearing into the ether. That way if you drop a weapon by mistake you can walk over it to pick it up again. If you're upgrading be sure to delete the old file because I changed the file name.
First Upload: May 10, 2015
Last Updated: May 14, 2015