Home Depot offers the Ryobi 18-volt ONE+ AirStrike 18-Gauge Cordless Brad Nailer, model no. P320, bundled with the Lithium Battery Upgrade Kit, model no. P128, for $149 with free shipping. That's $40 off list and the lowest total price we could find. The nailer features a selectable drive shift and a rate of up to 60 nails per minute. The battery upgrade provides up to 20% more run time compared to the standard battery. Deal ends February 26.