The Strike ASM Ring Cap Multi-Optic Mount System is a drop-in add-on for the SI Adjustable Scope Mount (ASM) that gives you almost endless mounting possibilities for just about all Mini/Micro Red Dot Sight (MRDS) footprints on the market or Picatinny rail for mounting IR devices, ranging equipment or any Picatinny based accessories. Only for use with 30mm tube Strike Adjustable Scope Mount (ASM). When you want to enhance your Strike Industries ASM by running a dual optic setup and have a close distance MRDS paired with a Low Power Variable Optic (LPVO) scope, this Strike ASM Ring Cap Mount is an accessory that does not force you to pick only one red dot you have to stick with forever. The included multi-optic plate or Picatinny rail can be mounted at 12 o'clock or 45-degree right or left positions to customize exactly for the specific user. With fitment for almost all MRDS on the market, the Strike ASM Ring Cap Multi-Optic Mount System gives you a simple and modular just about all-in-one solution to upgrade the functionality of the Strike Industries Adjustable Scope Mount (ASM).