Clamps-On For Instant Muzzle Stability
Aligns exiting barrel gas so it surrounds and stabilizes the bullet for increased accuracy. Turned from lightweight aluminum so it won't change the balance or feel of your rifle. Clamps to .920" diameter bull barrels.
Big Book Catalog, Issue:67, Page:174
SPECS: Aluminum, black teflon finish. 2-¾" (7cm) long, 1.2" (3cm) diameter.