Truly rust proof finish
Walter Birdsong and his Black-T® and Green-T® finish,
W.E. Birdsong & Assoc. Inc. 1435 Monterey Rd. Florence, MS 39073,
601-939-7448
I spoke to Walter on the phone on 12-22-07. He is 67 years old at this date. He is a class 2 dealer which means you can send a firearm directly to him without going through a dealer. Ship UPS or FedEx. $160.00 for Handguns, $198.00 for long guns plus $20.00 shipping for either size.
They completely disassemble the firearm and coat all metal parts except for the inside of the barrel for obvious reasons. After the gun has been treated, you will NEVER need to lubricate it again. Lubrication will actually increase the drag co-efficient of the metal. The metal also WILL NOT RUST, EVER, PERIOD. They treat large quantities of firearms for the major firearms dealers, including smith & wesson (lower case intentional), Springfield Armory, the FBI and several militaries, including the USA an Israel. Below was copied from the web.
So how tough is the finish? Based on our own personal experiences, it is extremely tough. The color will wear in high wear areas, like slide rails and bolts. But it takes a while before it does! Walter says he has NEVER had to warranty a finish on any product. That is not bad considering how firearms are sometimes abused, and the finish has been in use for over 25 years. One of the reasons for its durability is because there is NO color pigment in the finish at all, providing extreme wear protection, and the finish never stops hardening. during its lifetime. The corrosion protection is just as good. An independent testing committee quit the salt test spray after 7464 hours (over 10 months) because there was no sign at all of corrosion and they felt they were wasting their time and wouldn't see any for a long time. The finish also has 50,000 hours (over 5.75 years) of US Navy use with no corrosion. We have two firearms from Tactical Operations with Green-T finishes and they have held up extremely well with just light wear marks on the bolts, and these rifles are field rifles that are not babied at the range. They see much field work and the finish has held up great.