Shotgun Boogie Gun Works adjustable trigger kit for competition rifles, model Uberti ’73

Includes trigger, two trigger springs one is ~1 lb and ~1.5 lb, washer for the trigger spring, screws, pin and safety bar spring.

While this kit is easily installed, it is not drop-in, it requires fitting by a competent Gunsmith.

See also the article in Cowboy Chronicle January 2015 from Larsen E. Pettifogger. Pages 36-45:
https://www.sassnet.com/Downloads/15eChron/15janchron.pdf