.45 Barrel in a Glock 19?

[Dannix]

I'm was thinking about starting to shoot cast in my G19 and hence picking up an aftermarket barrel for it, but then I thought of the possibility of going .45.

Anyone put a .45 barrel in the G19/23/26/27 frame guns? Is it even a possibility i.e. are the G36 mags too short for the G19? If doable, is the G36 the same frame as the G19, or should I be sure to not shoot factory 45ACP in a .45 barreled G19 and stick only with my reloads?

Didn't see anything online about this. I'm tempted to just give a go, with all due prudence, but I'd figured I'd ask around first.

[yondering]

No, you can't fit a 45 ACP into a G19. The magazine well is too short, and the breech face in the slide is too small for the 45 case head.

[9.3X62AL]

The 45 GAP was adapted to the Glock 9mm/40 S&W frame size, to allow a 45 caliber chambering on the smaller platforms. I don't know if a slide/barrel/magazine swap onto a 9mm receiver will enable safe/reliable operation.

The GAP runs at higher pressures than the 45 ACP, which kind of defeats the purpose of the conversion if I understand the thrust of your inquiry. The 45 ACP is lead-friendly largely due to its lower operating pressures compared to the 9mm and 40 S&W.

[StarMetal]

http://glockmeister.com/pages.php?cID=3&pID=34