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LockNLube Professional Pistol-Grip Grease Gun


82 reviews

The LNL252 delivers up to 8,000 PSI. A cast aluminum head gives you the quality of a cast head, with the lighter weight of aluminum. A large-ergonomic grip means you have more grip on the grease gun. An integrated handle clip makes storage clean and easy.

Also includes our patent-pending loop & lock storage design for improved storage and carry. To reload the grease gun we use an oversized locking notch on the bottom plate (not a tab). This makes for fast and easy reloading and minimizes any risk of knocking the follower rod out of place before the barrel is reattached. As seen on TruckU on the Motortrend Channel!

Also includes:

  • LockNLube Grease coupler
  • In-line hose swivel
  • 20" hose rated to 14,000 PSI
  • Air bleeder valve
  • Replacement seal kit

Choose Your Coupler Size

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LockNLube's Professional Pistol-Grip Grease Gun combines the best-selling LockNLube Grease Coupler with a high-pressure, high-volume grease gun that is lightweight and ergonomic. We also include a 20" hose and in-line hose swivel to make reaching any grease fitting easier. The handle clip and Loop & Lock storage technology make this grease gun clean and easy to store, reducing the chance that you end up with grease where you don't want it, and keeping the coupler clean when you're ready to grease. 





LockNLube provides a full 30-day money-back guarantee on all products purchased from its website. If you are dissatisfied with your purchase, you can return it to us by shipping the item back within 30 days of purchase. Once we receive your return, we will refund you the full purchase price of the item.

Please ensure that the item you are returning is repackaged securely, with all its component parts included. Please also include any documentation that came with your original order, such as a packing slip or order confirmation.


Return items to us by shipping to:

Lock and Lube
12 Commerce Ave. Suite #3
West Lebanon, NH 03784

For more information, please call 603.795.2298. We’re a small business and we’ll pick up the phone in New Hampshire when you call.


Description Specification
Max. Operating Pressure 8,000 PSI
Flow Rate (strokes / oz.) 37
Hose Length (in.) 20
Weight (empty)

3.5 lbs. (1.6 kg)

Outlet Thread Size 1/8" NPT
Capacity (oz.) 16 (bulk); 14 (cartridge)
Loading Options Cartridge, Suction
Includes air bleeder valve and Loop & Lock? Yes
Warranty 1 year


Customer Reviews
5.0 Based on 82 Reviews
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Mark A.
United States United States

Heavy duty manual grease gun

Very good tool and very good folks to deal with. They stand behind their products

United States United States

Best Grease Gun I've owned.

I bought this grease gun not only because of my C.P. on my left side but also because of 2 different types of grease fittings on one Mini CTL. We no longer need 2 separate grease guns for one machine. With this grease gun I can lock the coupler on the grease fitting & pump & use my right hand & not worry if my grip in my left hand is going to give out holding the coupling. This grease gun solved both of my problems . Thanks for a great product . Will definitely buy again.

United States United States

Great one-handed grease gun

Really nice grease gun. I use it for lubing all the front-end and driveshaft bits under our 1993 Chevy G30 van. A lot of the Zerks are in awkward locations. requiring right-angle adapters, etc. — many of them take one hand to keep the grease fitting in place, leaving only one hand to operate the gun. I have a cordless electric grease gun. It does the job, but it's kind of bulky and hard to deal with when creeping around under the van. I always make a mess when using it. This manual one-handed grease gun is so much easier to use. And the swivel in the hose really helps with positioning, too. I've only used it once now, but the gun appears to be sturdy and well-built. So far, I'm very, very happy with it.

Jeanne M.
United States United States

Great Grease Gun Even A First Timer Can Use

This was the first lube job this 65 yr. old lady performed on a tractor. I watched the videos from the site several times, loaded up a grease cartridge, and went to work lubing. It was seamless, and no grease leaking everywhere with the quick attach coupler.

jenee w.
United States United States

The best purchase I’ve ever made

I cannot believe how wonderful this grease gun truly is! I’ve never greased my tractor before now without it being a messy frustrating and irritating situation all together. Those days are all over now. I’m completely in love and it was so worth ever penny spent. Thank you very much for making this a whole new experience for me and offering a product that is as great as this is! Thanks again!

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