Optic-specific 30mm cap designed for Midwest Industries MK2 scope mounts. Machined from hard coat anodized 6061 aluminum, finished in black, includes Torx hardware and the Midwest optic mount tool. Made in the USA with a lifetime warranty.
The Midwest Industries MK2 30MM RMR Cap is an optic-specific accessory designed for use with MK2 scope mounts. Precision machined from hard coat anodized 6061 aluminum, the cap provides a compact method to mount or adapt RMR-style footprint optics when used with compatible MK2 components. The part features engraved torque specs and Torx hardware, and it ships with the Midwest Industries Optic Mount Tool to simplify installation and adjustments.
Common applications for this cap include competition/practical shooting setups and precision field optics where a low-profile red-dot interface is required alongside a 30mm optic. It is intended for use only with MK2 scope mount systems and with optics that match the listed footprint.
Product Specifications
The finish is Black.
The fit is listed as Trijicon RMR.
The model designation is MK2 Receiver Extension as provided by the manufacturer data.
The size is 30mm.
The product type is Mount.
The subcategory is Optic Specific Mounts.
The material is Hard Coat Anodized 6061 Aluminum.
The product is Made in the USA.
The item carries a Lifetime Warranty.
The caps use Torx hardware for secure mounting.
The top includes premium engraved torque specs for reference during installation.
The packaging includes the Midwest Industries Optic Mount Tool to aid fitting and adjustments.
The manufacturer states compatibility with optic patterns including RMR, Acro T2, and similar micro-dot footprints for MK2 optic mounts.
The mount is described as precision machined for return-to-zero performance.
The UPC is 812102036050.
Engineered to integrate with the MK2 mount family, this 30mm RMR cap provides a streamlined option for shooters who need a reliable, low-profile interface between a 30mm optic setup and RMR-style red dots. The combination of hardened aluminum construction, engraved torque references, and included installation tool make setup straightforward while preserving return-to-zero alignment.
Users consistently note the cap’s solid fit and clean aesthetics as reasons they choose MK2 components for mixed optic builds.
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