#1 Home Improvement Retailer

Internet # 326480109

Model # P321K1

ONE+ 18V 18-Gauge Cordless AirStrike Brad Nailer with 4.0 Ah Battery and Charger

$229.00
Apply Now
Pay $204 after $25 OFF your total qualifying purchase upon opening a new card. 
Apply for a Home Depot Consumer Card
  • Power To Sink 2" Nails In Hardwoods
  • Lightest Cordless Brad Nailer In Its Class
  • Over 300 ONE+ Products – All Work With Any RYOBI 18V ONE+ Battery
  • View More Details

Free & Easy Returns In Store

Return this item within 90 days of purchase.

Read Return Policy

Ask about this product

Get an answer now with AI

AI-generated from the text of manufacturer documentation. To verify or get additional information, please contact The Home Depot customer service.

Product Details

About This Product

The RYOBI 18V ONE+ 18GA Brad Nailer Kit features the powerful, cordless convenience of AirStrike Technology, eliminating the need for noisy compressors, bulky hoses and expensive gas cartridges. This means faster setup and easy maneuverability on the job site. This Brad Nailer is capable of sinking up to 2" nails in hardwoods and is the lightest cordless brad nailer in its class, which helps prevent user fatigue. This nailer allows for extended periods of continuous work by sinking up to 1,900 nails per charge. It offers a 45% smaller nose for tight spot access and superior drive quality, compared to P320. There is also a tool-free depth of drive adjustment that allows for proper setting of nail heads. Great for window, door and cabinet trim, this Brad Nailer is the perfect addition to any carpenter or DIYer's tool collection. Best of all, it is part of the RYOBI ONE+ system where any 18V ONE+ battery works with any 18V ONE+ product. This Brad Nailer is backed by the RYOBI 3-year manufacturer’s warranty and includes the 18V Brad Nailer, 18V 4Ah lithium battery, charger, (2) non-marring pads and operator’s manuals.

Highlights

  • Power to fully sink 2" nails in hardwoods
  • Lightest cordless brad nailer in its class
  • Features AirStrike Technology, which eliminates the need for noisy compressors, bulky hoses, or expensive gas cartridges
  • 45% smaller nose provides tight spot access and superior drive quality (compared to the RYOBI P320)
  • Tool-free depth of drive adjustment helps protect work surface and allows proper setting of nail heads
  • Convenient adjustment dial regulates air pressure speed for optimal performance
  • Tool-free jam release for easy access to clear nails
  • 12% more compact for enhanced maneuverability (compared to the RYOBI P320)
  • (2) non-marring pads to keep work surface free of tool marks
  • Part of the RYOBI 18V ONE+ System of Over 300 Cordless Products
  • 3-year manufacturer's warranty
  • Includes: (1) P321 18V ONE+ Cordless AirStrike 18-Gauge Brad Nailer, 2 non-marring pads, (1) PBP005 18V ONE+ 4.0 Ah Battery, (1) PCG002 18V ONE+ Lithium-Ion Charger, and operator's manual
  • Click here for more information on Electronic Recycling Programs
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 326480109

Model # P321K1

Specifications

Dimensions: H 9.61 in, W 3.62 in, D 10.87 in

Dimensions

Battery Charge Time (Hours)

80

Nail Angle

Straight

Nail Gauge

18 gauge

Product Depth (in.)

10.87 in

Product Height (in.)

9.61 in

Product Width (in.)

3.62 in

Details

Battery Amp Hours

4 Ah

Battery Voltage (V)

18V

Battery/Charger

(1) 4 Ah Battery & Charger Included

Charger Included

Charger Included

Cordless/Corded

Cordless

Included

No additional components or accessories are included

Included

Battery Included, Charger

Loading Type

Strip

Maximum Fastener Size

2 in

Minimum Fastener Size

5/8 in

Multi-Purpose

Single Purpose

Nail Gun Angle

Straight

Nailer Features

Comfort Grip, Dry Fire Lockout, No-Mar Tip

Number of Total Batteries Included

1

Power Type

Cordless

Returnable

90-Day

Tool Weight (lb.)

6.07 lb

Tools Product Type

Air Tool

Questions & Answers

Can it drive a nail through Azek trim boards?
ByJul 20, 2026
1 Answer | 
Answer This Question

Hello, Howard28 - Yes. The RYOBI P321 18V ONE+ AirStrike 18‑gauge brad nailer can drive brad nails through AZEK PVC trim boards for typical trim installation work. It accepts 18‑gauge brad nails from 5/8" to 2" long and is rated to sink 2" brads into hardwoods, so driving into AZEK itself is not a problem. If you need further support, then feel free to ask another question. You can also contact us by phone at 1.800.525.2579, Monday - Friday from 9am to 6pm (EST), or via email when you visit us at https://www.ryobitools.com/support/contact. This question is from RYOBI ONE+ 18V 18-Gauge Cordless AirStrike Brad Nailer (Tool Only) (P321).

By|Jul 22, 2026


    What type of battery does this use?
    ByJul 20, 2026
    1 Answer | 
    Answer This Question

    Hello, Amyah - This nailer accepts RYOBI 18V ONE+ batteries. If you need further support, then feel free to ask another question. You can also contact us by phone at 1.800.525.2579, Monday - Friday from 9am to 6pm (EST), or via email when you visit us at https://www.ryobitools.com/support/contact. This question is from RYOBI ONE+ 18V 18-Gauge Cordless AirStrike Brad Nailer (Tool Only) (P321).

    By|Jul 23, 2026


      What comes with it
      ByJul 17, 2026
      1 Answer | 
      Answer This Question

      Hello, Woody99 - This nailer comes with two non-marring pads and an owner's manual. If you need further support, then feel free to ask another question. You can also contact us by phone at 1.800.525.2579, Monday - Friday from 9am to 6pm (EST), or via email when you visit us at https://www.ryobitools.com/support/contact. This question is from RYOBI ONE+ 18V 18-Gauge Cordless AirStrike Brad Nailer (Tool Only) (P321).

      By|Jul 19, 2026


        Can this be used to ship lap a ceiling or will the nails go through?
        ByJul 14, 2026
        1 Answer | 
        Answer This Question

        Hello, Murf - Yes. This nailer is designed for the following uses: Finish and Trim (Interior and exterior), Door & Window Casing, Door Jambs, Baseboard, Crown Molding, Cabinetry, Cap and Shoe Molding, Molding, Staircases, Door and Window Trim, Chair Rail, Brickmold, Hardwood Flooring, Paneling, and Furniture. We hope this helps! If you need further support, then feel free to ask another question. You can also contact us by phone at 1.800.525.2579, Monday - Friday from 9am to 6pm (EST), or via email when you visit us at https://www.ryobitools.com/support/contact. This question is from RYOBI ONE+ 18V 18-Gauge Cordless AirStrike Brad Nailer (Tool Only) (P321).

        By|Jul 30, 2026

          (1)

          Can this be used to nail in 5/16 wood?
          ByJul 14, 2026
          1 Answer | 
          Answer This Question

          Hello, Murf - This nailer utilizes 18 GA nails with a brad length of 5/8 – 2”. If you need further support, then feel free to ask another question. You can also contact us by phone at 1.800.525.2579, Monday - Friday from 9am to 6pm (EST), or via email when you visit us at https://www.ryobitools.com/support/contact. This question is from RYOBI ONE+ 18V 18-Gauge Cordless AirStrike Brad Nailer (Tool Only) (P321).

          By|Jul 22, 2026


            Are any nails included
            ByJul 9, 2026
            1 Answer | 
            Answer This Question

            Hello, Donald - This purchase doesn't include nails. If you need further support, then feel free to ask another question. You can also contact us by phone at 1.800.525.2579, Monday - Friday from 9am to 6pm (EST), or via email when you visit us at https://www.ryobitools.com/support/contact. This question is from RYOBI ONE+ 18V 18-Gauge Cordless AirStrike Brad Nailer (Tool Only) (P321).

            By|Jul 15, 2026


              I am looking to put up cedar clapboard siding. Does this do the job but not overdue the job?
              ByJul 5, 2026
              1 Answer | 
              Answer This Question

              Hello, Frank - No, this isn't recommended for that application. If you need further support, then feel free to ask another question. You can also contact us by phone at 1.800.525.2579, Monday - Friday from 9am to 6pm (EST), or via email when you visit us at https://www.ryobitools.com/support/contact. This question is from RYOBI ONE+ 18V 18-Gauge Cordless AirStrike Brad Nailer (Tool Only) (P321).

              By|Jul 9, 2026


                What nail links does it shoot?
                ByJun 30, 2026
                1 Answer | 
                Answer This Question

                Hello, Charles - This nailer utilizes 18 GA nails with a brad length of 5/8 – 2”. If you need further support, then feel free to ask another question. You can also contact us by phone at 1.800.525.2579, Monday - Friday from 9am to 6pm (EST), or via email when you visit us at https://www.ryobitools.com/support/contact. This question is from RYOBI ONE+ 18V 18-Gauge Cordless AirStrike Brad Nailer (Tool Only) (P321).

                By|Jul 24, 2026

                  (1)

                  Viewing 1-8 of 295

                  Customer Reviews

                  4.5 out of 5

                  • 4.5 out of 3,128 reviews
                  • 90% recommend this product
                  Filter by:
                  Showing 1-10 of 3,128 reviews
                  Getting ready to update some baseboard and needed a nail gun. Works very well, not too heavy and well balanced.
                  by
                  18 ga brad nailer
                  [This review was collected as part of a promotion.] Works really good get the job done I really like this product
                  by
                    • Recommended
                    Powerful enough for the DIY’er
                    [This review was collected as part of a promotion.] This nail gun is a must if you're doing any kind of trim work in your house to speed it up or projects like building a birdhouse. I e had a few jams but it was more of me not getting it ready with the tip depressed correctly. It's very powerful and the pinpoint accuracy at the tip is very nice.
                    by
                      • Recommended
                      Must buy
                      [This review was collected as part of a promotion.] Excellent fast product with simple calibration and easy nail placement
                      by
                        • Recommended
                        If I Could Give 10 Stars, I Would
                        [This review was collected as part of a promotion.] This nailer has been awesome! Plus the battery platform is amazing, so I can swap it out with one on the three other batteries I have. It was quick to set up, manual was straight forward with operation, and super easy to use,
                        by
                          • Recommended
                          This Brad nailer that we purchased was used to put up our trim in the whole house. It made the job easy and the nail holes so small that a little filler, paint touch up and the job was done. Loved this Brad nailer.
                          by
                          Really Useful
                          I am really impressed with this Ryobi 18 gauge brad nailer. It’s lightweight, easy to use, and drives nails consistently without jams. Perfect for DIY projects and trim work. Battery life is solid too. Great tool
                          by
                            This customer chose to rate the product and not provide text.
                            by
                            • Verified Purchase
                            1 found this review helpful
                            This tool worked great for my home diy project, but a couple weeks in, the nails stopped firing. I tried lubricating the chamber and was never able to get it to work again. Sadly had to return.
                            by
                            Nail gun
                            [This review was collected as part of a promotion.] Very handy, easy to use great for many household projects
                            by
                              • Recommended
                              Showing 1-10 of 3,128 reviews