RS M2 Carbine Weapon (Mod-New Weapon)

Okay So I've been working on an M2 Carbine. It's a new weapon, and not an upgrade for the M1 Carbine (Honestly considering that I've only seen three upgrades on any weapon, I'd rather not risk running into problems by creating an additional upgrade). It's functioning fine, except for the recoil & Particle FX when the bullets hit objects in game, both of which I'm a little confused on why they aren't working. I've successfully tested it, it works fine, except for these issues. I'm new to coding, first time I've ever bothered to code something. Any help would appreciated on solving these problems.