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Briley in Houston does traditional finishes such as blueing, parkerizing and chrome as well as some of the more modern ones such as electroless nickel and teflon.

I had taken a former boss' rifles to Briley to have them re-blued, but I did not pick them up when it was complete so I can't speak on the quality of their service. I never got to see the rifles after either (see 'former' boss). Though he sounded pleased with the service, he isn't much of a gun person. They were semi-old family heirlooms that began to rust, he had me research a place in Houston that could re-finish the rifles for him and I stumbled upon Briley. The turnaround was about a month and a half. They offer many custom/gunsmithing services as well as re-finish, so I thought the month and a half wasn't bad at all.

They have a storefront on the west Beltway near I-10 that sells shotguns and hunting apparel/accessories.

As for DuraCoat, try contacting Dale at gripreductions.com. I have never had work done by them, but their DuraCoat pricing was fair when I was in the market. I ended up doing a DuraCoat job myself which costed about $60 and I didn't do a very good job. I think Dale charges $50 per color (and a pattern fee if you want an intricate design). GripReductions has a storefront in Cypress, TX from what I was told.