The Command Access MRC1 Retrofit Chassis series for Best 35, Cal Royal 8000, Corbin Russwin 2000, & Falcon MA series utilizes a high quality Grade 1 chassis built to withstand years of use. You can install this lock with the confidence of knowing that the MRC1 carries our top tier features, options, and specifications. The MRC1 allows for field handing and it comes with a 3 year no hassle warranty. The MRC1 is an ideal solution for value engineered projects. This mortise lock is available for retrofits to the following brands: Best 35, Cal Royal 8000, Corbin Russwin 2000 & Falcon MA series compatible trim and may be purchased as chassis only. A face & strikeplate in 626 are included.