The Kastle Group RMR-45 is a Fortress Series offset mount that carries a red dot with a Trijicon RMR footprint at a 45-degree angle. It is designed to work with Kastle's MICRO-226 and ACRO-226 optic mounts, attaching to the side of the mount so a second red dot sits alongside your primary optic. That setup gives you a spare optic if your primary goes down, and it lets you hold a second zero if your rifle shoots both subsonic and supersonic ammunition. The angled position also helps when you shoot from compromising positions or need to work from abnormal angles around obstacles.

The RMR-45 is machined from 7075 aluminum and finished in black with Type III hard anodizing. Kastle machines its Fortress Series optic mounts in its own facility, and this mount is made in the U.S.A. Kastle covers its machined mechanical products with a lifetime warranty against defects in materials or workmanship.

• Brand: Kastle Group
• Model: RMR-45
• Type: Offset Mount, Fortress Series Optic Mount
• Optic Footprint: Trijicon RMR
• Mount Position: 45 Degree Offset
• Material: 7075 Aluminum
• Finish: Type III Hard Anodized