Ok so i will admit I am Glock illiterate. Can anyone give me some insight on this gun before I deal with a friend? I have googled but I trust you more than the interwebs.
I love mine.. 45 in a 9mm size package.. Ammo costs a little more and not available at wally world but most gunshops have it. .. Last I knew 7 State police agencies are using it so it hasn't quite died yet.G.A.P. = Glock Automatic Pistol
It is a round that Glock designed to get .45 ACP type ballistics out of a gun in a 9mm or .40 s&w size frame.
Some people like it some hate it. I believe they were hoping it would catch on with the law enforcement market, but no such luck. It kind of died for the most part.
I carried one for a year or so. I believe in the GAP idea. I switched back to 9mm due to practice ammo costs. People who say it was an answer to a question no one asked are incorrect. There are many people who wanted a Glock 19 with .45 ballistics. (Or Glock 26, or Glock 17). The .45 GAP solution answered that problem. I believe the Glock 9mm & .40 frames are perfect, and the .45ACP frames are uncomfortable. If you happen to share that same feeling and want .45 ballistics....the GAP is your best friend. If you don't happen to have that issue, then you can ignore it completely.
Honestly, Glock did themselves a disservice. They marketed it as a replacement for the .45ACP. What they didn't expect is is all of the old codgers holding onto their .45ACP beliefs and history. They absolutely could not displace the love of 1911s in the standard caliber and immediately pissed off 1911 fans (which is a HUGE subset of gun owners). That is the reason why when you ask on here you get flamed, and why if you mention GAP in a gun shop you will get laughed out of there. It does solve a specific problem, but everyone and their mom hates the idea simply because it tried to step on the toes of .45ACP.
Glock got too big for its britches and should have stayed as a niche solution for a few people. I've heard many police agencies like it because women can get a good grip, but the agency can retain .45 ballistics. By the way...the .45 GAP doesn't use higher pressures, it just removes the extra space that is left in .45ACP cases by today's more efficient powders. From a purely economical standpoint, we should all switch to .45GAP (less brass). From a real-world standpoint...no chance in hell.
They are sweet shooters. The ole' solution in search of a problem line gets thrown around a time or two in every GAP thread. If it fits what you are looking for then go for it. Check around for ammo availability. It's available, but you have to be willing to search a little or buy online.