Having the right hardware on hand for your ACOG mount is the kind of preparation that matters most when you need it and do not have it. The Trijicon ACOG Extra Screw and Washer Set AC12005 gives ACOG owners a direct replacement set of the mounting screws and washers that keep the ACOG secured to its mount, the hardware that takes the most wear through regular mounting and dismounting cycles and occasional field replacement requirements. The ACOG carry handle screw and washer set AC12005 includes the specific hardware designed for ACOG mounting applications - the correct thread pitch, dimensions, and material specification that Trijicon uses in the original mounting hardware. Using the wrong replacement screws on an ACOG mount can cause problems ranging from stripped threads and inadequate clamping force to screws that bottom out before the mount is properly secured. The AC12005 eliminates those problems with direct replacement hardware designed specifically for this application. The scope accessories AC12005 mounting hardware keeps the ACOG secured to its mount with the clamping force and thread engagement that the original design requires for reliable zero retention through hard use and recoil. Hardware that has been overtorqued, stripped, or worn through repeated mounting cycles needs replacement before it compromises the security of the entire optic mounting system - and the AC12005 provides that replacement hardware directly from Trijicon. The extra screw and washer set gives ACOG owners a supply of replacement hardware that covers multiple mounting needs - useful for operators who regularly mount and dismount the ACOG across different rifles, gunsmiths who professionally install ACOGs, and any shooter who wants the right replacement hardware available without having to source it at the worst possible moment. Trijicon ACOG Extra Screw & Washer Set AC12005