RYOBI ONE+ HP 18V Brushless Cordless 7-1/4 in. Circular Saw (Tool Only) PBLCS300B - Amazon.com
RYOBI ONE+ 18V Lithium-Ion 4.0 Ah Compact Battery (2-Pack) and Charger Kit with FREE Cordless ONE+ 5-1/2 in. Circular Saw PSK006-PCL500B - The Home Depot
RYOBI ONE+ HP 18V Brushless Cordless Compact 6-1/2 in. Circular Saw (Tool Only) PSBCS01B - The Home Depot
Ryobi P506 One+ Lithium Ion 18V 5 1/2 Inch 4,700 RPM Cordless Circular Saw with Laser Guide and Carbide-Tipped Blade (Battery Not Included, Power Tool Only) green full size - Walmart.com