Teamed with a Lyman receiver sight, these low silhouette front sights provide precise accuracy on the range. Designed for use with dovetail slot mounting, they are supplied with seven interchangeable inserts that are locked into place with a threaded cap. The 44-0115 17AML fits low to the barrel with a height of .445. The 44-0116 17 ATC fits the Thompson Center Hawken, Renegade and PA Hunter Models.