The reason i like it is because they are so popular and and have been around for a long time and its the gun i grew up with. 9mm is always going to be available the glock 19 is small enough to conceal but big enough to shoot with aftermarket parts and pieces are plentiful they also have the ability to accept factory 30 round mags and even aftermarket 100 round mags they are lightweight and they work
My second choice would be a sig p226 in 40s&w these guns are also reliable and the coastguard and f.b.i like these guns i would have chosen a glock 23 because you can convert It to a 9mm all you need is a 9mm barrel and magazines but he said choose the 5 you would like and i wouldnt want 3 glocks lol
My third choice would be a glock 21 45 acp my reason is because im more familiar with glock and this will hold 13 rounds of 45acp so it it kicks a 1911s ass jk i would like a ruger sr1911 also if he let us choose more than 5.
4th choice would be a s&w model 617 in 22lr ammo is cheap can be bought in bulk and isnt as finicky as a semi auto pistol
Gee, given your screen name I would ave thought you'd have chosen something in .357 Magnum or 357 Sig.
Ar15 pistol!! 223/556 is still available everywhere and some parts can be shared with the rifle version ar15s are so popular and can accessories and repair kits are everywhere!
I would have chosen a s&w model 686 as well but he said only 5 the reason id choose a s&w 686 is because you can use both 357/38 and is very beautiful to me and would be a great camping gun 357 mag has decent power but id rather have a 556 ar pistol with a 100 round mag for vehicle defense c:< Haha!!