What is the difference between a Glock .45 ACP and Glock .45 GAP???
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difference between Glock ACP & GAP??
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The rounds they fire...
.45 GAP is a fad cartridge that was designed to fill a 'GAP' that didn't exist. Pun intended, of course.
Mike -
The .45GAP has a shorter overall length then the .45ACP cartridge with equal ballistic performance. The difference between a Glock 21 (.45ACP) and Glock 37 (.45GAP) is the size of the pistol, with the Glock 37 being smaller.
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Due to it's overall length being shorter than the .45ACP, the .45GAP can fit in handguns with the same grip size as a 9x19mm/.357SIG/.40S&W.
.45GAP ballistics are similar to non +p .45ACP ballistics.
In addition to Glock, Para-Ordnance and Springfield Armory make handguns chambered in .45GAP.sigpic
"If someone has a gun and is trying to kill you, it would be reasonable to shoot back with your own gun." - Dalai Lama (Seattle Times, 05-15-2001).Comment
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You forgot the rest of that quote:
Personally, I like Walt Rauch's statement about the .45GAP:
I like the .45GAP, but I think that the bias against will succeed in killing the caliber. If people were to look at it dispassionately, it would be an exceptionally good personal defense caliber.
-JimMy friends and family disavow all knowledge of my existence, let alone my opinions.Comment
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My apologies...You forgot the rest of that quote:
Personally, I like Walt Rauch's statement about the .45GAP:
I like the .45GAP, but I think that the bias against will succeed in killing the caliber. If people were to look at it dispassionately, it would be an exceptionally good personal defense caliber.
-Jim
I was just trying to lead everyone to the excellent article. Like all pistol calibers, the .45GAP has its own strengths and weaknesses.Comment
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If 45GAP is ballistically (approximately) equivalent to 45ACP, why go for the rarity factor?
Geez, my Officer's ACP is a pretty small 1911 - not that much bigger than my P232 in 380.
Bill Wiese
San Jose, CA
CGF Board Member / NRA Benefactor Life Member / CRPA life member
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No postings of mine here, unless otherwise specifically noted, are
to be construed as formal or informal positions of the Calguns.Net
ownership, The Calguns Foundation, Inc. ("CGF"), the NRA, or my
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legal advice, which can only be given by a lawyer.Comment
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I am going to open my big mouth...
I am going to open my big mouth here, and I may have to insert my foot if I am wrong. The difference between .45 GAP and .45 ACP is:
The 45 ACP has been around for almost a century, and will live on for many more years. The 45 GAP will not.Comment
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Because if you want a small, double-stack auto in .45, you need to have big hands.
For example, I can't stand the Glock .45ACP frames, but I like the 9mm/40 frames. Their GAP model uses what is effectively the 9mm/40 frame.
It's odd how the modern and natural evolution of a cartridge has seen so much opposition. I wonder if my failure to embrace this opposition comes from the fact that I don't consider the 1911 to be the apex of fighting handguns.
-JimMy friends and family disavow all knowledge of my existence, let alone my opinions.Comment
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The 45 Gap cartridge is about 1/10" shorter than the 45 ACP. Therefore the length of the grip can be shortened about 1/10".
How much smaller and handier of a pistol will it fit in?Frank
One rifle, one planet, Holland's 375

Life Member NRA, CRPA and SAFComment
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Any caliber that is not being widely used by LE or military, will not gain the "poopular" factor. you will still be able to find them, just expensive. If .40 S&W didn't have wide acceptance of LE world, I doubt that you can find a box in local gun shop.
I love .45ACP, I have a few 1911 that shoots very well. However, I can't shoot a G21 because it does not fit my hand (the new G21SF is not helping much either). G37 with .45GAP will fit much better, but my real issue is... (flame suits on) I hate Glock!NRA certified RSO, Pistol/Rifle/Personal Protection Inside The Home instructor, Certified SIG/Glock pistol armorer.Comment
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Somewhat true, but remember that the 9mm and .45ACP are at least 70 years old (100 years, in the case of the .45). Modern metallurgy and chemistry now allows for better cases and powders, and there is no reason why those advances should not result in better cartridges.
When better ones come out, some of them are adopted by government institutions. The only reason the military doesn't lead the charge is economics and bureaucracy. But most of our federal law enforcement agencies use the .40S&W, and even the Secret Service now uses the .357Sig due to its outstanding ballistics.
Bureaucracies today almost never lead the way in regards to new calibers. The private market does. The .45 GAP has the unfortunate timing of being introduced at the same time as the resurgence of the 1911 platform, so it has started with a monumentally uphill battle to fight. And Glock's and Springfield's moves to cash in on the .45ACP band wagon undermines their own efforts to promote the GAP.
The .45 ACP is the 800-pound gorilla of the cartridge world. It is very good, and it is the principal chambering for a handgun platform that is proven and loved by thousands of shooters. Time will tell whether natural (and positive) evolution of superior cartridges will overcome emotional attachments to traditional favorites.
I don't have a passion about the GAP, but I do think that we should not be stifling developments in new cartridges.
-JimMy friends and family disavow all knowledge of my existence, let alone my opinions.Comment
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The Glock 39 (45 GAP) is about 1/2" shorter in both lenght and height than the Glock 36 (45 ACP) so the 10th in the case doesn't directly relate to the gun size. The difference in the grip size and feel is significant when you hold the two in either the compact or full size guns.
If you reload the cost isn't any different if you buy brass.Originally posted by E. Fudd;Also .45 GAP ammo is much harder to find in stores and when you find it, it's NOT cheap
If you don't like the calibler then don't shoot it, get over it.where are my pistol mags?Comment
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