This high capacity box magazine for the P90 utilizes the feeding mechanism of a hi-capacity M16 magazine - either the 190 round VN type magazine or the 300 round M16 / M4 type magazine. This box magazine has a roll-away cover on top that allows you to pour BBs in quickly and easily. By replacing the standard magazine, there is now room for installation of a large battery. Battery bag and securing strap, along with battery re-wiring cord is included. ABS plastic construction with metal spine. A must for serious users of the P90.
Please note that this box magazine will only work with an M16 300 round hicap magazine or an M16 VN type 190 round hicap magazine installed. It will not work without a magazine inserted. If you do not already own an M16 hicap magazine, please also purchase one separately. Will NOT work with M16 standard magazines. With this box magazine, you may also opt for an 8.4v large battery - that can go where the original magazine would have been seated. Battery bag and strap included already.