Mounting Plate 2BME Two Brothers Military Engineering 2BME012 Sig Sauer Legion / M17 / M18 for Trijicon RMR / SRO / Holosun 407C / 507C / 508T

The TBME 2BME012 mounting plate allows selected Trijicon and Holosun red dot sights to be mounted on  Legion / M17 / M18 pistols.

2BME red dot mounting plates

The bases are designed and manufactured by the Polish company TBME (Two Brothers Military Engineering), which uses high-end DMG-Mori CNC machines in the production of its products.

TBME plates are dedicated to pistols that are factory-prepared (or modified by a gunsmith) for direct mounting of red dot sights on the slide.

The bases are made from 7075-T6 aircraft-grade aluminum, making them extremely durable and exceptionally lightweight (depending on the model, approx. 8 g). The plate is finished using hard anodizing to military specification (MIL-SPEC), which increases resistance to scratches and wear. Anodizing is a process that hardens the surface of aluminum and protects it against oxidation. TBME mounting plates stand out not only for their durable finish and perfect fit to the firearm, but also for enabling an exceptionally low mounting position of the red dot sight. Thanks to the use of measuring probes, the plates are precisely dimensioned and fitted to the factory slide cut. To ensure stable and reliable mounting of the red dot sight, the plate features a system of steel interchangeable inserts called “Quad Lock”, which allows the use of screws with strong multi-thread engagement (excluding models mounted on the so-called dovetail). The set includes all components necessary to mount the red dot sight on the firearm: the strongest on the market four A4-class stainless steel Torx mounting screws, a tube of thread locker, and installation instructions.

For mounting the plate and red dot sight, it is recommended to use a medium-strength thread locker (included) and a torque wrench set to 1.2 Nm. Before final installation, it is advisable to mount the complete plate (with threaded inserts) and the red dot sight without using thread locker. This verification ensures that the plate is properly fitted to both the red dot sight and the firearm.

The TBME 2BME012 red dot mounting plate allows installation of the following sight models:

• Trijicon RMR
• Trijicon SRO 
• Holosun 407C
• Holosun 507C
• Holosun 508T