In case you haven’t heard, many of the mounting plate options for the Glock MOS have proven to be unreliable unless certain mitigating factors are put in place. Forward Controls Design has set out to correct these shortcomings with the introduction of their OPF-G (Optics Platform, Glock).
From Forward Controls Design:
OPF-G, RMR (Optics Platform, Glock, for RMR) is a Glock MOS Adapter Set 01 compatible plate for mounting Trijicon RMR or SRO on Glock Gen 4 and Gen 5 slides, G17, G19, G34, G35, G41 (width 25mm/1 inch.) It is incompatible with G40 that uses Set 02.
We like the Glock MOS concept, even if we find the factory MOS adapter plates could use some help. Standards, commonality, availability of parts are all good things. Heretofore, users have had to send in their slides to be milled to accept mini red dot sights, or opt for 3rd party optics ready slides. The time it takes to send in the slides to be milled, and varying quality of the milling work and optics ready slides notwithstanding, there was a lack a standard regarding the sight height, it’d be a coincidence if two slides milled by two different shops share the same sight height. Glock’s MOS may not sit as low as some, but in our opinion, what MOS offers more than makes up for it, namely a uniform sight height, ease of installation, parts commonality and availability.
OPF-G, RMR is a collaboration with a USMC combat veteran and former USMC Shooting Team head coach, Tom Shields. We used Glock’s MOS adapter plates as a basis, and designed our version of what we think it should and can be.
OPF-G, RMR’s shape follows its functions, same as all of our products. We outlined the following objectives:
1. Sight is to be fully supported in the front and rear by recoil lugs/fences, with minimum movement.
2. Eliminate the need to use an additional sealer plate.
3. Correct length sight to plate, and plate to slide screws. Screws are to be Torx.
4. Adapter plate is to be machined in steel.
OPF-G, RMR accomplishes all of the goals outlined above. OPF-G, RMR’s thickness is unchanged from that of the Glock MOS plate, it doesn’t change the sight’s mounted height, nor does it require different iron sights.
The OPF-G is compatible with the SRO but may not fit other sights, like those from Holosun, that use the same mounting hole pattern. Learn more at ForwardControlsDesign.com.