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I posted over at HKPro with pictures.

https://www.hkpro.com/forum/hk-handgun-talk/520480-hk45-tlr-7-8-custom-key.html

So I'm sure most on this forum know about the cool custom work mfrey has been doing with custom keys to adapt lights

so I reached out to him about HK45 and a TLR-8AG that I had recently purchased...