Upgrade your rifle with this unique stock option from Classic Army, the BAS polymer adjustable stock. The battery compartment and overall construction is slightly larger than most crane stocks. This stock can easily accommodate a 2000mAh 11.1v Lipo battery, or up to three 11.1v batteries individually. There is also a loop attachment area if you want the option to use a sling, located at the rear of the rifle. The ergonomic design makes the BAS stock comfortable and offers maximum rifle stability when aiming.