hello everyone, im Zac, new to glocks and this forum. have a question that hopefully someone can answer-so i went into my local gun store today to look at a glock 26 which i have done my research on and decided to buy for CC and for fun on the range. i found the store almost completely empty with only a few handguns remaining. luckily a G26 was one of them, the guy told me he didnt expect them to last so i put down a $160 deposit. but what i forgot to check was if it was a gen 3 or 4, called back and its a 3. i had only researched the 4 so im a little concerned. i know there arent any major differences but im wondering if the 3s accept all glock 9mm mags like the 4s do?