Albanian AR15.com member prestonlennox recently published photos and videos of a home made HK P7 “half cock action” (HCA) pistol.  Working on rumors of a new Heckler & Koch striker-fired pistol, the poster took a Umarex SP9 and Browning HP parts to make this one-off, home made pistol.

It is unclear if he has attempted to fire the gun.

Thanks to Axel for the tip.