*Updated 120-Round version for 2013! Our employees unanimously agree that this is one of the best grenade shells we've ever carried. It does not require "resetting" like the other shells on the market, just fill it with gas like a magazine and fill it with BBs and you're ready to go. Whether you want it for blasting people in CQB, or want a wall of BBs at 100+ ft., this CNC (computer numerical control) made aluminum grenade will do job. And, because it's shorter than most shells, it will fit nearly any airsoft grenade launcher on the market. Unlike other PPS and SHS grenades, this is the all aluminum version (no plastic) for added durability.