Elftmann trigger ar-15 match pro curved pro lock 2.75-4lbs.

FEATURES:
Curved
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

Other Features: Fully adjustable 2.75-4# pull, aerospace grade sealed roller bearings on hammer & trigger rotation points.Made in usa lifetime guarantee, 100% drop-safe design, skeletonized trigger, proprietary threaded mounting system