CBS = Collapsible Butt-StockNylon Fiber Construction.The Collapsible Butt-Stock (CBS) comes with a Mil-spec 1913 Picatinny Rail and a storage copartment for storing CR123A batteries.The rail and storage compartment door can be switched to another side.Comes with 2 QD sling mount on each side.Comes with a rubber made butt-stock pad.Suitable for most of the M4 AEG.This part can use on Airsoft ONLY.Color: BlackManufacturer: CAA Airsoft Division
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