THE BASIC PRINCIPLES OF GLOCK 30 GEN 4

I put a Tarran Tactical package right into a gen three g23 and It truly is now super lite but I still could not hit just about anything with it. My Mate could shoot it very well but I struggled. Eventually I modified the inventory sights to some Dawson Precision Preset Opposition Sight Established and now I do pretty good with it.Is just one a tad