Today I celebrated the 37th anniversary of my 40th birthday! My son gave me a 53 D Lyman Adjustable Shotgun Sight, With Disc, for Savage 24, 22, .410. It appears to fit my Savage M220. I have one that has been drilled and tapped for a receiver peep sight. When I have time I will see if it will fit. I have two others that specifically say for the 220 Savage. It is in the original box and in excellent condition. He also gave me a Savage Four-Tenner in the original box for the 16 gauge guns. It also is excellent and marked "New Featherweight Model". He also gave me a first edition of "U.S. ARMY AIRCRAFT", 1908-1946. Soft bound with lots of really great pictures. It was also my grandaughter, Isabella's, 10th birthday. All in all, a really great day!