ASG - VFC McMillan M40A3 20rnd Sniper Rifle Magazine - Black is a magazine for the VFC McMillian M40A3 6mm BB Spring Action Sniper Rifle and holds up to 20 BBs at a time. The Magazine is constructed from Polymer, and features a Spring Fed System, which dispenses BBs automatically, removing the need to wind the magazine and prevents rattle by reducing BB Movement. The Magazine is filled from the top either slowly by hand, or at speed with an Airsoft Speed Loader. The Magazines are also designed with an indent at either side of the bottom of the magazine, allowing them to be easily removed from the rifle by allowing additional grip on the mag. This is the perfect purchase for those Airsoft Skirmishers looking for additional Magazine for their VFC M40A3 Sniper Rifle, so they can spend more time shooting before having to stop to refill magazines. Please note, that this Magazine is designed to work with the ASG / VFC M40A3 McMillian Edition, which comes in Olive Green, and are not compatible with the Sportline Black Version.