Lyman 17AML Muzzleloader Target Front Globe Sight - .494in Height . OpticsPlanet Inc is an Authorized US Distributor for Lyman Tritium & Fiber Optic Night Sights. The ideal companion for the 57SML receiver sight. The ideal companion for the 57SML receiver sight the 17 comes complete with a set of 8 interchangeable inserts. The 17AML fits low to the barrel with a height of .494". The 17ATC fits rifles that use a tall vernier type rear sight. The 17ATC has a height of .852". All 17's are machined from steel and have a standard 3/8 dovetail. (Except 17AEU which has European Dovetail for Lyman Muzzleloaders). WEIGHT: 1 oz Lyman #17A Muzzleloader Front target Sight is available with the following options: Lyman 3090115 17AML target Front Globe Sight .494 High Lyman 3090116 17ATC target Fr. Sight For T.C. Rifles Lyman 3171074 target Front Sight 17AEU .494 High (Euro dovetail) We offer complete line of Lyman Tritium & Fiber Optic Night Sights. For our complete selection of products by Lyman on sale please visit our Lyman page. For more Tritium & Fiber Optic Night Sights please visit our Tritium & Fiber Optic Night Sights store section. Specifications for Lyman #17A Muzzleloader Front Target Sight: Manufacturer: Lyman Fabric/Material: Steel Weight: 1 oz Package Contents: Lyman #17A Muzzleloader Front Target Sight Lyman 17AML Muzzleloader Target Front Globe Sight - .494in Height - 3090115