Power Custom Series II Stoning Fixture .154" Adapter for AR-15/M16 (.154" Pins)

Eliminates the guesswork and provides an accurate, repeatable method to achieve a crisp, clean-breaking trigger pull on semi-automatic firearms.

Individual, easy-to-change adapters attach to a precision-ground indexing elevator column and clamp the hammer in the right position for correct stoning using the specially ground Series II India Stone.

Adjustable design lets you change hammer angle to meet the shooter’s needs. Series II India Stone required (sold separately).

Fixture specs:

• Steel, blued, precision ground and hardened
• 5" (12.7 cm) high, 4" (10 cm) wide
• 3" (7.6 cm) wide

Includes: 1 adapter, hammer and sear clamp, three Allen wrenches and instructions.

.154" Adapter: fits AR-15/M16 with .154" dia. hammer and trigger pins.

Compatibility note: .173" adapter fits Colt Commercial AR-15 only (not this variant).