The Custom Ballistics Turret is a user-installed replacement for the stock elevation turret on the Maven RS.1, RS1.2, RS3.2, RS.4, & RS.5. Customized to your ballistics and shooting environment, the Custom Ballistics Turret provides one full rotation of custom yardage marks. Markings are limited to one rotation and max distance will vary depending on users' ballistics. Not all variations are available in all turrets, check below for details. * Mounting height is measured from the center of the barrel to the center of the scope. Built by Wyoming Arms . Custom Turrets ship within 2 weeks of order. RS.1 Specifications: -The design provides a functional zero-stop* once installed. -Dimensions: 7/8 in. -Weight: 0.9 oz -Available in MOA - Black RS1.2 Specifications: -Dimensions: 1.25 in. -Weight: 0.4 oz -Available in MOA or MIL - Black or Black / Grey RS3.2 Specifications: -Dimensions: 1.25 in. -Weight: 0.2 oz -Available in MOA or MIL - Black or Black / Grey RS.4 Specifications: -Dimensions: 1.5 in. -Weight: 0.5 oz -Available in MOA or MIL - Black or Black / Grey RS.5 Specifications: -Dimensions: 1.25 in. -Weight: 0.4 oz -Available in MOA or MIL - Black or Black / Grey *See FAQ for more info