B5 Systems has taken the venerable design of the Crane NSWC designed SOPMOD buttstock and incorporated the features sought by military professionals and firearm enthuisiasts. The Enhanced SOPMOD features color matched steel hardware, one piece anti-rotation quick disconnect sling mounts, no slip cushioned buttpad, suregrip stock latch, and dual water resistant storage compartments. The Enhanced SOPMOD is made of milspec materials and finishes. Proudly made in the USA. Features : Ergonomic cheek weld. Color-matched steel hardware. Overmolded steel anti-rotational QD sling mounts. Fixed sling mounts. No slip cushioned butt pad. Suregrip stock latch. Dual water resistant storage compartments. Made of Milspec materials and finishes. Fits Milspec carbine receiver extensions Available in all standard colors.