Turnbull’s Signature Case Color Hardening


Sponsored Content–Turnbull Restoration & Manufacturing

Turnbull 1886 rifleTurnbull Restoration & Manufacturing  have been restoring vintage firearms for more than 30 years. Over that time, they have become one of the best in the business at case color hardening, among other finishes. The process has become Turnbull’s signature finish.

In the late 1800’s and early 1900’s case color hardening a gun receiver was done to strengthen the steel. The coloring in the process was just a byproduct of the hardening process. Back in those days, steel was not as strong as it is today, so gunsmiths needed a way to harden the steel receivers. Today, this process is purely cosmetic.

Turnbull-Comm-Hert-RS-full-length022216Turnbull’s case color hardening process is done the same way gun makers would have done it back in the late 1800’s. Turnbull will pack a crucible with crushed bone and charcoal mix, and the steel parts. They then take the crucible and bake it at over 1400 degrees. After it has been baked for the proper amount of time, the steel will be taken out and quenched in slightly above freezing water. Once the parts have fully cooled and dried, a thin layer of clear coat is applied for protection. This layer will protect the coloring from getting smudged or faded. This is the same process that has been used for over 100 years.

Today, case color has made a comeback. The combinations of colors and the pattern are applied to things like sword parts to newly designed firearms. Turnbull has their own “Heritage” series handguns that feature a color case frame. They also make reproduction 1886, which feature the color case receiver.

Turnbull-AR-030116The case color finish is displayed where ever Turnbull goes. Recently, Turnbull has promoted their gun giveaway which features a Turnbull AR – 15. The TAR – 15 has a unique case colored steel frame. As one of the only case colored ARs on the market, it draws a lot of attention. While at the 2016 Safari Club International Convention, Turnbull donated a TAR – 40 to be auctioned off. The gun also featured a case colored frame, only the TAR – 40 is a .308 unlike the TAR – 15 which is a .223.

Turnbull has been the leader in case color hardening for more than 30 years. This signature process will restore your vintage firearm back to its original finish or turn dull steel parts into beautiful accessories. Be sure to check out all the Turnbull finish options available.

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