“Get 9mm conversion barrel for each and you have the best of both worlds. 9mm for cheaper shooting and .40 for more stopping power self defense.”
I had no idea that was possible.
Of course, along with the conversion barrel you will need to get 9mm mags also.
“Get 9mm conversion barrel for each and you have the best of both worlds. 9mm for cheaper shooting and .40 for more stopping power self defense.”
“I had no idea that was possible.”
It gets better - buy a .357 SIG barrel (.357 SIG = .38 bullet in a necked-down .40 case) and get a third gun, flatter shooting with higher muzzle velocity (but less down-range energy). With the .357 SIG, you can use any of your glock .40 magazines. If you get the 9mm barrel, you will need to use 9mm magazines. Still, pretty cheap way to get three guns in one!