Chambers Custom RDSM™ Plate for 1911 and 2011

$ 1.00

PLEASE be sure to add a note at checkout or send an email to Heidi,, with the installer of your choice.

Most RDSM™ plates come in carbon steel, blued and include the driftable BUIS and mounting hardware to attach the plate to your properly machined slide.

The RDSM™ is only available through the Chambers Custom Shop and we have a number of Certified Installers you can use to machine your slide for the  RDSM™ . After ordering your RDSM™ simply let us know which shop you will be sending your slide(s) to for install and your RDSM™ will be waiting for your slide to arrive. 
All first time purchases of the RDSM™ will only be shipped to our certified installers so that we can control the quality of the installation process.

Current Certified Installers include:

Brandon Buhler - Owner of Buhler Ballistics, LA, and Custom Pistolsmith for CCP
Dave Laubert - Owner of Defensive Creations, OH
AJ Zito - Owner of Practical Performance, AZ

The price break down is as follows:

~ $150.00 plus shipping for the  RDSM™, BUIS and plate mounting hardware
~ $150.00 plus return shipping to machine your slide for your RDSM™ by our certified installation professionals. This amount is payable to the installer directly.
~ $25.00 additional for any slide that is DLC, Nitride, or other coated
~ Price does not include any refinishing you may desire after install

If your slide has already been milled for the RDSM™ plate cut, please make a note at checkout so the new plate can be mailed to you directly. Also, please watch our video on how to change out your plate on YouTube: Also please be advised the mounting screws on the extractor side may need to be shortened so they do not stick into the extractor tunnel.

The RDSM™ Plate currently comes in the following configuration:

RDSM™-R: This is our original plate design and is compatible with Trijicon RMR, Holosun 507C or 508T. The SRO will also work with this plate if the BUIS is not installed.
RDSM™-K: Compatible with Holosun 507K
RDSM™-T: Compatible with Holosun 509T
RDSM™-A: Compatible with Aimpoint ACRO (Please not this plate does not have a BUIS)

Gun and red dot pictured, not included. Cost includes mounting plate only.


Please note that we do not include screws to mount the red dot to the plate. Red dots should be able to be mounted with the screws provided from the manufacturer. Mounting holes in the plate are 6-32 tpi and can be found at your local hardware store or

Technicians typically do not locktite the rear BUIS in place to allow you to adjust for your gun upon receipt. Applying locktite to the rear BUIS dovetail is necessary to prevent the loss of said sight. We recommend green locktite.

RDSM™ Plate is not compatible with the following:

-Pistols with an external extractor.

-Pistols with a firing pin safety.

-Slides cut for other manufacturers red dot plates.

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