HK Army Hostile CTS - Reflex Backpack Gloves and others that require a

and others that require a long thin round battery type

and you have an ultra-responsive and lightweight polymer AEG with legendary KWA performance

Holster not included (any Cytac holster will work with this)

Uses any M4 magazines

HK Army Hostile CTS - Reflex Backpack Gloves and others that require aThe CTS Reflex Backpack is a versatile addition to your kit offering customizability, mobility and safety. Designed primarily to safely carry your HPA Tank, the Reflex Backpack offers four different areas for the HPA tank hose to route through, interior and outer storage compartments, adjustable padded shoulder straps, cummerbund guides, and multi functional tether points. The modular outer storage zipper pouch can be removed and attached to the front