The CA Enhanced Carbine MOD Stock for CS Battery is a great improvement over the older CA Crane Stock. The back plate easily removes for quick access to the battery compartment. The lever to adjust the length is sleek and easy to operate. Below the battery compartment is a small storage compartment for small tool or extra CR123 batteries. Additionally there are two QD Sling swivel divots for QD Sling adaptors, one on the left and one on the right. In addition to the stock's great features it also has a futuristic and unique look. This is an excellent choice for those looking for a great looking and functional stock.