Model: #P310G

4.6 | 200 Reviews
RYOBI™ introduces the new and improved 18V ONE+™ Power Caulk and Adhesive Gun. This tool features over 500 lbs. of push force to handle higher viscosity material with ease and can apply more than 200 tubes of caulk per charged ONE+™ battery. The 18V ONE+™ Power Caulk and Adhesive Gun is backed by a 3-Year Warranty. The 18V ONE+™ Power Caulk & Adhesive Gun is sold as a bare tool, allowing you to build your ONE+™ collection without spending additional money on batteries and chargers with each tool purchase.


Ryobi three year warranty logo

This product is covered by a 3-year limited warranty.

The RYOBI 18V ONE+ System features over 225 unique products, giving you the ultimate in versatility and selection to get the job done.

View our current promotions for new product releases and the latest RYOBI savings!

Ryobi Help+

Your one stop destination for tips & techniques, manuals, troubleshooting, FAQs and more!


  • Battery: 18V
  • Carriage: Standard 10 oz.
  • Discharge Rate: Variable
  • Tool Weight: 3.70 lbs


  • P310G Power Caulk & Adhesive Gun
  • Operator's Manual


18V ONE+™ POWER CAULK & ADHESIVE GUN is rated 4.6 out of 5 by 200.
Rated 3 out of 5 by from Great Features.. Bought this a couple of months ago and used it for my glue up ceiling tiles. The tool worked great with the adhesive for the glue up ceiling tiles but when it came to the caulk, it left a lot to be desired. It was a total mess. No matter which setting i used it just pushed out way to much to fast. Then one of the tubes wouldn't work, come to find out all the caulk was being pushed out into the gun instead of out the end where it should have been. Needless to say the gun was useless after that. Good thing is Home Depot accepted the return so i think i will stick to the manual type gun as much as i liked the idea of a battery powered one i just can't do this again.
Date published: 2020-10-06
Rated 5 out of 5 by from A BREEZE TO OPERATE This RYOBI 18V ONE+ Power Caulk Gun was just what the Doctor Ordered. I have arthritis bad, in both my hands, so I knew that laying down 350 + feet of concrete crack caulk on my patio with a hand powered caulk gun was not going to be fun. Then I came across this tool while searching the Home Depot website. I have a RYOBI string trimmer and a 2 gallon weed sprayer, and have been very happy with both, so I decided to give this tool a try. Boy, I'm glad I did. Easy to load, heavy duty design, 72 tubes of calk between charges with a 4AH battery, and the rate of flow adjuster allowed me to caulk a LOT or a little. Would buy again and recommend this tool.
Date published: 2019-06-28
Rated 4 out of 5 by from be careful how thick of adhesive you use while using a product called "non sag" adhesive for concrete i actually Bent the push rod on this tool. i was able to bend it right back and finish the job, but it seems if the adhesive is too thick and resistant to flow the tool tends toward self destructing. On the other hand, i could NOT even squeeze the "non sag" adhesive out of a hand operated caulk gun no matter how hard i tried and i broke one of those trying as well. so basically i could have never got the job done without a power caulk gun, but there was a problem along the way, so 4 stars it is.
Date published: 2019-06-09
Rated 5 out of 5 by from The tool I never knew I needed! When I first saw this I thought it was the most “gee-whizz” gadget out there. Then my wife convinced me to get one for a job we were doing and my whole world changed! I love the convenience of the caulk gun and how when you let off the trigger the flow of material actually stops, unlike traditional caulk guns that will continue to dribble unless you release the plunger lock lever. The variable feed rate is also a great feature when caulking long runs. Essex, you will not know how much you needed this caulk gun until you use it! Then you’re going to wonder why it took you so long to get one!
Date published: 2019-10-09
Rated 5 out of 5 by from Best tool in my stained glass install tools Many years ago I bought the old blue color gun to use with a new adhesive sealant I started to use while installing my stained glass windows. I was wowed with the ease and speed of installing. We have two on the job site and I always keep an extra in the van. My caulk is really hard to extract and many times the tubes would pop or leak. I bought a box of 1 1/2” Fender washers and put one on each end. No more problems. My motto is don’t leave the shop without the glass or the caulk gun. Best tool ever. At 79 I still look forward to new ryobi tools
Date published: 2018-10-15
Rated 5 out of 5 by from Caulk-Caulk-Caulk Caulk it up! I got this because I had a project that required a lot of caulking and really didn't want to have to squeeze a manual one... plus I was hoping my wife would do it while I worked on another part of the project. She did find it really easy to use it, but in the end, I had to do it because she said I did a better job at it (in hindsight, maybe her sweet words were just a con). This thing helped me get the project done SOOO fast. I'm glad I bought it, but to be honest, if I hadn't had such a big project to do, I would not have. Most projects can be done quickly with a halfway decent manual one. If you use caulk on a daily basis, I'd totally recommend this.
Date published: 2020-08-30
Rated 5 out of 5 by from Sooo Glad I Did! The Robny 18V One Plus power caulk & adhesive gun is a grand tool.; Tired of tired hands squeezing the trigger on manual caulking guns and breaking out an air compressor and hose for a pneumatic tool is just a pain in the...neck. But this battery powered caulking gun is the cat's meow! Snip the tip and drop the cartridge into the barrel then squeeze the trigger to lay a neat solid bead of caulk or adhesive at the speed YOU select. Seal cracks in concrete, lay a bead of silicone caulk, or fill larger cracks and crevices all around the house with ease. Don't know why I waited so long to buy this tool, but sooo glad I did!
Date published: 2020-09-07
Rated 5 out of 5 by from I was afraid this was going to be frivolous. Boy was I wrong. I've glued over two dozen foamboard panels for a basement insulation project and can't imagine doing that with a manual squeeze gun. This power caulk tool runs a smooth even bead that is easy to apply an even line on the foam board, the adjustable speed allowed the gun and I to find a comfortable rate to get a nice straight even bead instead of the splattery mess I used to make trying to squeeze while drawing the bead with a manual gun. I've also used it to silicone caulk around plumbing sillcocks. I won't ever go back to manual caulk guns again, this tool just makes it way easier to get the job done.
Date published: 2021-01-29
  • y_2021, m_6, d_9, h_19
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.17
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_200
  • loc_en_US, sid_205648767, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_ryobi-tools