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**JohnKSa** · December 25, 2019, 11:32 PM

Those barrels are machined with a slightly larger diameter band of metal around the barrel at the muzzle.

This article contains a picture of one with the band of metal visible.

https://www.gunsamerica.com/digest/r...stol-need-one/

Here's the picture. The PX4 barrel is the one at the bottom.

I suspect that what your fingernail is catching on is the edge of that band.

December 25, 2019, 11:32 PM	#4
JohnKSa Staff Join Date: February 12, 2001 Location: DFW Area Posts: 24,989	Those barrels are machined with a slightly larger diameter band of metal around the barrel at the muzzle. This article contains a picture of one with the band of metal visible. https://www.gunsamerica.com/digest/r...stol-need-one/ Here's the picture. The PX4 barrel is the one at the bottom. I suspect that what your fingernail is catching on is the edge of that band. __________________ Do you know about the TEXAS State Rifle Association?