The Kastle DB-226(TM) has been designed to work with our MICRO-226(TM) & ACRO-226(TM) series of optic mounts to allow you to quickly attach a Laser, Thermal, or any other device in front of your optic to save some rail space further forward. This option is also perfect for smaller platforms without a ton of real estate out front. Made in America from 7075-T6 aluminum and type III MIL SPEC hardcoat anodized.