Tactical Butt stock BSP-137 w/ 2.5 inch side Picatinny rail and battery storage 

Specifications for BSP-137:

Storage compartment for CR123 batteries.
Side Picatinny rail – 2.5 inch rail allows addition of Adjustable cheek-rest, mag' pouch or shell holder.
Rubber non-slip butt pad with tapered angle, allows faster shouldering & increased comfort with body armor.
Two ultrasonically welded metal quick release sling mount points.
All can be easily fit to both left/right handed users.

Measurements:
Weight: 360 gr
Height: 13 cm
Length: 19 cm
Width: 4.3 cm
Diameter: Mil-Spec

Material: Made of High Strength Polymer