Yeah DO NOT do that! I guess I should have been clear. Only shoot the calibrated round that matches the barrel! Only the mags are interchangeable!G17XJ_BS said:Hate to see what happens when you stick a .40 mag full of 9mm in a .40 cal pistol.
The highest capacity 9mm Glock magazines you can get in Ohio are G17 magazines with magazine extensions. There are some aftermarket companies who make magazine extensions that you can use on G17 magazines in Ohio.thanks for the info. the mag ordered was a 9mm. the company just sent a .40. i will return it and get the 9mm. 33 rounders are illegal in ohio . thanks again