Remington model 12C with a Lyman peep sight. I am starting to need more than a simple peep sight and have a period scope being rebuilt. Once returned I’ll put it on another model 12 C. I love those octagonal barrels. Not a tack driver, but under 50 yards a still squirrel, is a dead squirrel. Mine shoots standard velocity rounds the best, with dime size groups at 25 yards with a Lyman peep sight.