EXTREME DUTY BORE SOLVENT Reviews & Ratings

Used and recommended by major firearms manufacturers, Lucas Extreme Duty Bore Solvent & Ultrasonic Gun Cleaner is a premium blend of cleaning solvents and corrosion inhibitors. It easily removes carbon and powder residue from actions as well as copper and lead fouling from cylinders and barrels. The solvent based formula cleans deep to remove old oils and grease and provides a micro thin layer of rust and corrosion inhibitor on metal surfaces and bores. It is safe on polymers and factory applied firearm finishes. Lucas Extreme Duty Bore Solvent & Ultrasonic Gun Cleaner’s solvent based formula was designed to thoroughly and efficiently clean firearms using an ultrasonic cleaner. Its high flash point makes it ideal for heated tank ultrasonic cleaners. The special formulation is designed to be used straight from the bottle without any messy mixing and without having to use a rinsing agent or lubrication dip, saving you time and money. After ultrasonic cleaning, simply remove your firearm, allow it to drip dry or used compressed air, lubricate per manufacturer’s instructions and reassemble. Your firearm is clean, protected from corrosion inside and out, lubricated and ready for storage or carry.

Cleans and protects your firearms, provides excellent rust protection.
Low odor, pleasant grape scent, contains no ammonia, kerosene or water.
Great for use in ultrasonic cleaners, solvent based formula requires no mixing, rinsing or oil dip after ultrasonic use, saving time and money.
Ideal in heated units, flash point of 210° F is much safer than other products.

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5 Stars

83%

4 Stars

3 Stars

2 Stars

1 Stars

17%

Reviews Summary

EXTREME DUTY BORE SOLVENT impresses many users with its effective cleaning capability and mild odor, outperforming some competitors. While some reviewers found it less effective than other homemade solutions, the product's safety for both users and firearms is a significant plus. Overall, it's a solid choice for firearm cleaning tasks.

What Reviewers Are Saying

Cleaning Effectiveness

60%

Many users praise the solvent for its exceptional cleaning abilities, often achieving results better than other strong-smelling alternatives. However, there are some mixed reviews where users found other homemade solvents more effective for specific tasks.

Odor and Safety

80%

Reviewers consistently highlight the mild odor of the solvent as a major advantage, noting it does not have the harsh smells associated with traditional solvents. Additionally, its safety for both the user and the firearm adds to its appeal.

Versatility

50%

The product's versatility is noted, as it can be used effectively without an ultrasonic cleaner and works on various surfaces without causing damage, appealing to users looking for a multi-functional bore cleaner.

Comparative Performance

40%

Some users expressed disappointment when comparing it to other products, particularly homemade solutions that performed better in specific scenarios. This highlights a segment of users who were looking for even stronger performance.

Manufacturer Reputation

40%

Reviewers generally trust the Lucas brand due to their satisfied experiences with other products. This reputation influences their positive reception of the bore solvent despite mixed effectiveness results.

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Good stuff

Lucas products are excellent.

by MICHAEL RINALDI on December 18, 2025

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New favorite

Cleans as good or better than any strong smelling solvent. It got the bore in my old M1 carbine cleaner than it has been since I got it some 40 or so years ago. I was thrilled. Bore is in much better shape than I thought. All this, and it smells no stronger than dish soap. Another big plus; a little left on a metal surface does no harm. In fact, leaves behind a protective film. Important if it runs into a spot you can't get to easily. I can't find a down side to this stuff.

Lucas

I love all of the Lucas products. No strong odors, does a great job removing dirt and grime without damage to the firearm. Highly recommend any of their products!

Excellent cleaner

Can be used without a ultrasonic cleaner. Viscosity similar to water. I have not let it sit long enough to see the effects on copper, but it works well to remove everything else. No unpleasant odor.

Good product

There's no noxious odor so you won't get chased out of the house by an angry spouse. What odor there is, is very mild, and you won't be poisoned by casual skin contact. It's polymer safe so that's a plus. Won me over with one of my harder cleaning jobs, the gas piston from my shotgun. Let it soak, took a brush too it and was pleasantly surprised at the results.

Disappointed

I decided to give this bore cleaner a try as I'm always looking for something better..... Although the Lucas cleaner smells good that's about all I can say for it. I have several other solvents, homemade Ed's Red being one of them that does a much better job of removing carbon, powder fouling and some even will loosen up lead deposits. I expected better with the Lucas solvent as I use their other car products and have been pleased with them.