Birchwood Casey 44140 Synthetic Gun Oil 10 oz. Aerosol

Birchwood Casey's synthetic gun oil in 10 oz. aerosol delivers multi-climate protection for all your firearms. This isn't a one-season lubricant—it's engineered to perform from deep winter cold to desert heat, maintaining its protective film across an extreme temperature range of –55°F to 300°F. The aerosol format makes application fast and even, so you can get back to the range or field without fuss.

The dual-action formula cleans while it oils. Synthetic Gun Oil's natural solvency helps dissolve carbon and residue buildup on metal surfaces as the lubricant itself settles in, reducing friction between moving parts and spring mechanisms. Because it won't gum up or break down under temperature swings, you get consistent performance in your carry gun, hunting rifle, or safe queens without seasonal maintenance swaps.

Low evaporation rate means the protective layer stays put—no thin film that disappears after a few shots or sits. That translates to rust protection that lasts through humid seasons, storage, and varied use. Whether you're breaking in a new bolt carrier, maintaining your EDC pistol, or conditioning older firearms, Birchwood Casey's formula works across all metal surfaces and action types.

Key Features

• Performs reliably from –55°F to 300°F—no viscosity breakdown across seasons
• Cleans and lubricates simultaneously, reducing carbon and friction
• Low evaporation rate for extended rust protection
• Convenient 10 oz. aerosol spray for fast, even application
• Suitable for all firearm metal surfaces and action types

Specifications

Frequently Asked Questions

Will this gun oil work in cold weather and hot climates?

Yes. Birchwood Casey Synthetic Gun Oil is rated to perform from –55°F to 300°F, so it won't lose viscosity or protective qualities across seasonal and extreme temperature swings.

Can I use this on all my firearms?

This oil is formulated for all firearm metal surfaces, so it works on pistols, rifles, shotguns, and any other firearms in your collection.

Does this oil clean as well as lubricate?

Yes. The natural solvency of Birchwood Casey Synthetic Gun Oil cleans carbon and residue while the lubricant itself reduces friction between mating parts, combining two maintenance steps into one.

How long does the protection last?

Because the oil has a low evaporation rate, the protective film remains in place much longer than thin, quick-evaporating oils, providing extended rust protection during storage and use.