Derraco Engineering Anvil base single screw type (Hornady type) tumbler Requires less energy to initiate

Requires less energy to initiate expansion

QD 115 U22

Install the Red Short one first

rails and accessories so make sure to order M-LOK accessories if your chassis or rifle features the M-LOK technology

Derraco Engineering Anvil base single screw type (Hornady type) tumbler Requires less energy to initiateMade of 303 stainless steel and brass. Our bushing holders will not work on the Hornady comparator set. Only compatible with the Derraco Engineering Headspace & Bullet Comparator set. Single screw type is convenient but may interfere with use and may not be as true. Dual grubscrews type will sit flush on caliper jaws, and offer secure gripping. Our Anvil bases will work with any brand of bullet comparators.