The 13CI Mobile Air Tank Stock (MATS) for A5 is a complete standalone high pressure air system that allows you to make your marker completely mobile and do away with cumbersome remote line and tank. This is a 3-Position collapsible stock that utilizes a refillable 13CI HPA Cylinder which holds enough air for roughly 120 shots and can be quickly refilled with high pressured air using any standard HPA refill station readily available from most paintball pro shops and fields. You can also use this stock with 3.5oz CO2 or any 5cm diameter air bottle.

MILSIG’s air in stock has an especially unique design in which a user’s comfort and ability to use optics on the marker is kept in mind. The offset tank mount keeps the stock and the tank low, thus allowing the user room to properly cheek wield the marker and maintain a proper and full sight picture when using optics on the marker while wearing a paintball mask.

The ability to properly use optics such as a red dot scope, or a rifle scope with magnification enhances the playing experience for the user; allowing him to spot a target further away, and to make a faster and more accurate shot. When every shot counts, MILSIG has got you covered.

We highly recommend using the 13CI HPA refillable system, sold separately, because it is the ideal setup for hardcore milsim paintball enthusiasts who value realism and complete mobility, say good-bye to your heavy external tanks and disconnect yourself from remote lines that only create unnecessary tension on your marker. This HPA setup is designed for also environmentally friendly because it is a refillable system and you no longer create garbage by throwing away disposable CO2 cartridges. MILSIG markers are designed to perform optimal with High Pressured Air (HPA) and it has proven to keep your marker cleaner while providing significantly improved consistency and reliability even under extreme temperatures.