The Ryobi P321 is an 18V ONE+ AirStrike 18-gauge brad nailer that drives nails without a compressor, hose, or costly pneumatic setup. The brushed motor drives 5/8–2 in. brad nails into a 105-nail magazine, making it well-suited for trim work, cabinet installs, light furniture assembly, and general finish carpentry. The nose is 45% smaller than the prior generation, giving better sightlines and reach into tight cabinet corners. Two non-marring pads protect finished surfaces. As a bare tool it integrates into any existing 18V ONE+ battery collection — pair it with a 4.0 Ah pack for roughly 1,900 nails per charge.
Does the Ryobi P321 need a compressor?
No. The P321 uses Ryobi's AirStrike technology — a cordless, battery-powered mechanism that drives nails without a compressor, hose, or pneumatic accessories. Just charge an 18V ONE+ battery and start nailing.
What size brad nails does the P321 accept?
The P321 accepts 18-gauge brad nails ranging from 5/8 in. to 2 in. in length. This covers most trim, molding, and light finish carpentry applications.
Does the P321 have a dry-fire lockout?
No. The P321 does not include a dry-fire lockout feature. You will need to monitor the magazine manually to avoid blank firing into your workpiece. The brushless upgrade P322 adds dry-fire lockout.
How many nails can I drive per charge?
With a 4.0 Ah ONE+ battery (sold separately or bundled in the P321K1 kit), you can expect approximately 1,900 nails per charge — more than enough for a full day of trim work.
What is the difference between the P321 and P322?
The P321 uses a brushed motor (ONE+ platform) and lacks dry-fire lockout, while the P322 uses a brushless motor (ONE+ HP platform), adds dry-fire lockout, and accepts slightly longer nails up to 2-1/8 in. The P322 also delivers more consistent driving power in hardwoods.
# Ryobi ONE+ 18V AirStrike 18-Gauge Brad Nailer (Tool Only) **Model:** `P321` **Brand:** Ryobi **Category:** Brad Nailer > The Ryobi P321 is an 18V ONE+ AirStrike 18-gauge brad nailer that drives nails without a compressor, hose, or costly pneumatic setup. The brushed motor drives 5/8–2 in. brad nails into a 105-nail magazine, making it well-suited for trim work, cabinet installs, light furniture assembly, and general finish carpentry. The nose is 45% smaller than the prior generation, giving better sightlines and reach into tight cabinet corners. Two non-marring pads protect finished surfaces. As a bare tool it integrates into any existing 18V ONE+ battery collection — pair it with a 4.0 Ah pack for roughly 1,900 nails per charge. ## Specifications | Attribute | Value | |---|---| | Voltage (V) | 18 | | Platform | ONE+ | | Motor Type | Brushed | | Gauge | 18 | | Nail Length Range In | 5/8–2 | | Magazine Capacity | 105 | | Dry Fire Lockout | No | | Tool Free Depth Adjust | Yes | | Tool Only | Yes | | Batteries Included | 0 | | Battery Included | No | | Charger Included | No | | Warranty | 3-year limited | ## What's Included - (1) P321 18V ONE+ AirStrike 18-Gauge Brad Nailer - (2) Non-Marring Pads Source: https://www.jaspecs.com/ryobi/brad-nailer/p321-ryobi-18v-one-plus-airstrike-18ga-brad-nailer-tool-only/