I SHOULD be picking up my new complete slide assembly tomorrow for my G43/43X. Then I’ll be able to mount my Vortex Defender inclosed emitter RDS. :GRIN: I reckon the 43X version will be my primary. I have some Glock 15 round mags for it and only 12 rounders for the G43. Hey, nine rounds could make a big difference. Do I truly think I’ll ever need that difference, no, but why not use any advantage you can.