Up for sale is a Lyman 57SML Receiver Sights designed to fit the Lyman Trade Rifle, Lyman Deerstalker and others like the Thompson/Center Hawken muzzleloaders. I used this sight a couple of times at the range. I didn’t care for it so I took it off and since then it’s been sitting in its case. It is in excellent to new condition and has all the parts including the manual. Items included are as follows: Two mounting screws Instruction manual Standard Hunting Disc 1/2 x .093 Standard Target Disc 5/8 x .040 and the original hard plastic case it came in.