The ECHO1 Crane Stock for M4 with buffer tube is a great way to improve the look of your M4. The crane stock provides a cheek rest for left and right handed shooters. This crane stock is designed to fit your CR123 batteries in the storage compartment, just like the original design. Some modification may be required to accommodate airsoft batteries.
Manufacturer: Echo 1
This crane stock package comes with everything you need to install on your M4.