Review: H&K MARK23 The Civilian Version MK23 SOCOM -The Firearm Blog
The GG&G HK MK 23 light and laser mount is the the easy and rock sold way to mount a light or laser to your HK MK23.
One of the first, and one of the last. Two HK Mark 23s, the subtle differences between them and a quick overview of the Insight LAM (also bonus current project). : r/guns
H&K Mk23 SOCOM .45 Development - YouTube
Heckler & Koch Mark 23 - Wikipedia
Completed Mark 23 weapon system (suppressor and laser/flashlight) | HKPRO Forums