GrovTec GTSW191 Picatinny Rail 6" 15-Slot AR Stock - Black Hardcoat Anodized

The GrovTec GTSW191 is a 6-inch MIL-STD-1913 Picatinny rail section purpose-built to mount to the buttstock of AR-15 platform rifles. It puts a full-length Picatinny interface on the rear of the rifle, giving you a stable mounting surface for weaponlights, sling attachments, monopods, sling studs, and other rail-compatible accessories where you previously had no real estate at all.

The rail is precision CNC machined from a single piece of lightweight aluminum and finished in Type III black hardcoat anodized for long-term wear and corrosion resistance. Measuring 6" long and offering 15 slots of usable rail, the GTSW191 clamps directly to most AR-15 stocks and adds functional, repeatable accessory mounting without permanent modification. A simple, no-nonsense upgrade for shooters who want to expand the back end of their rifle.