Product DescriptionElftmann trigger ar-15 match pro strait pro lock 2.75-4lbs.
Adjustable from 4lbs to 2 3/4lbs
Proprietary Threaded mounting system
Compatible with ALL calibers - 5.56, 9mm, .308
Fits any mil-spec AR-15 (Standard pin size, no large pin Colt)
Drop-Safe regardless of pull-weight
Very short pull and reset allows for rapid follow up shots and greater accuracy