OPF-G, ACRO (Optics Platform, Glock, for RMR) is a Glock MOS Adapter Set 01 compatible plate for mounting Aimpoint’s ACRO P1 and P2 on Glock Gen 4 and Gen 5 slides, G17, G19, G34, G35, G41 (width 25mm/1 inch.)Â 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, ACRO is identical to the Tangodown AAM-01. Based on the success of the OPF-G, RMR, we had been asked to develop a Glock MOS compatible plate for the superb Aimpoint ACRO. We saw and tested what our friends at Tangodown has already made, and determined AAM-01 is exactly how we would have done it and there was nothing we could have done better, there is therefore no reason to create another one just like it under our name. We don’t like rebranding, but do make exceptions when the products in question are outstanding, and we share the same values as the companies that make them. We’ve known Tangodown and its folks for a long time, we carry Tangodown products, and are proud to be able to put our logo on the AAM-01 and make it OPF-G, ACRO.
OPF-G, ACRO is machined in 4140 steel and Melonite coated. For a short time, OPF-G, ACRO will have both our Cygnus logo, and Tangodown’s logo in tandem.
Proudly designed and made in the USA.
brittontyrell (verified owner) –
The best option for the MOS system.
nasadell (verified owner) –
The quality you expect from Forward Controls Design. If you have an Acro or Acro P2 this is what you want. Straightforward mounting instructions that include torque spec, but also give estimates for how far to turn if you don’t have a small torque wrench. Includes something similar to loctite red, but that FCD finds works better in these applications.
Ordering from Ape was smooth too! They were one of the only places that had it in stock when I ordered. Fast and cheap shipping. Will order from them again.