Worked out the 19X at 50 yards. Meh results. Beat it like a dog with my RTF2 G19 with KKM barrel. Then dropped that KKM barrel into the 19X and the Marksman barrel into the RTF2.
BOOM. Low strike flyer but four shot group just stupid. 6:00 hold on the head at 50 yards. I'll leave the KKM barrel in the 19X for a spell. Marksman barrel in the RTF2.
Interesting to me is that in each of my Gen 3 or 4s I put a KKM barrel in (3 19s and 3 17s) the KKM raised the POI such that I got .245 tall front sights to dial them in.
But swapping OEM Marksman barrel with KKM G19 barrel had the same POI in the 19X. I changed the OEM tritium set to HD's from another pistols with a .245 tall front and got a nice just on the top of the front post POI. I guess the Gen 5 tolerances are such that the KKM doesn't change that aspect vs Marksman barrel.
Attachment 33896
Attachment 33897