M1911 Barrel Bushing Q

[sheepherder]

Back in the 80's, there was a company selling a M1911 barrel bushing with a Teflon o-ring in it. The bushing was oversize (compared to the 'ideal' bushing ID) and cut internally for a {I think) 1/16" Teflon o-ring. The barrel rode on the Teflon and never wore and always returned to the same position.

I bought one, IIRC it came with 10 o-rings. I sold the pistol with the Teflon o-ring setup, and promptly forgot who made it.

Mario's comment on fitted bushings reminded me of mine. I've used Micro bushings, hand reamed to exact fit for individual barrels, but that Teflon bushing was the slickest setup I ever owned.

Anyone remember them? Anyone know who made them, and if they're still available?

I know that some inventions get bought by Big Companies and then buried because they have too much invested in their own product and don't want the competition...I have a hunch that is what happened here...