SRC's Combat Stock is similar to most crane styled stocks, but is now available in this new version that features reinforced nylon for extra durability and a secure, removable butt plate for easy battery swapping and charging.  Batteries can be easily inserted and removed just by removing the butt plate.  This kit includes two interchangable butt plates that you can use depending on your comfort and style (or if you lose one). 

The stock is compatible with ERBAT24 or any of the specially labeled SRC Crane stock batteries from Intellect.  Other Large-Type (Sub-C or SC size) crane stock batteries are too large and will not fit.