USED Hi-Lux Optics M14/M1A Mount with External Windage Adjustment Matte Black M14MT. It has taken long but Hi-Lux Leatherwood has finally released the Leatherwood M14 / M1A All Steel Mount to solve the issue with inconsistent dimensions. This is a Springfield Armory Picatinny Scope Rail for the M1A / M14. All the recoil loading is taken by the clip guide slot so the forces are parallel to the gun axis. This Rifle Scope Base is machined to Hi-Lux Leatherwood dimensions that fit both Weaver and Picatinny rings. Specifications for Hi-Lux Optics M14/M1A Steel Mounts w/ Windage Adjustment: Manufacturer: Hi-Lux Optics Color: Black Finish: Matte Fabric/Material: Steel Quantity: 1 Hand: Ambidextrous Gun Model: M14 Springfield Armory M1A Gun Type: Rifle Weight: 363 g Features of Hi-Lux Optics M14/M1A Steel Mounts w/ Windage Adjustment For M14/M1A Some modern production M1A rifles may require some additional modification to fit mount External Windage Adjustment Package Contents: Hi-Lux Optics M14/M1A Steel Mounts w/ Windage Adjustment Clip Guide Picatinny Rail M14 Left Side Angle Piece Hi-Lux Optics M14MT: M14/M1A Mount with External Windage Adjustment Matte Black