The SERIES II STONING FIXTURE with AR-15 Adapter ensures accurate and repeatable trigger pull adjustments for semi-automatic firearms.
It features an adjustable design with individual Adapters for precision stoning, requiring the Series II India Stone or Series II Hard Arkansas Stone, sold separately.
This product is specifically designed for the AR-15 with a .173" diameter pin and includes a hammer and sear clamp, three Allen wrenches, and instructions.