Makita SP6000J1 6-1/2" Plunge Circular Saw Kit, with Stackable Tool case and 55" Guide Rail, Blue - Power Circular Saws - Amazon.com
WEN 10-Amp Plunge Cut Circular Track Saw Bundle with Guide Rails, Connectors and Carrying Bag - Amazon.com
110" Track Saw Guide Rail 71387 194368-5 Joining Set for Makita and Festool, Includes 2X55" Aluminum Extruded Guided Rail and 2 Connectors for Woodworking Longer Cuts, Black, 2 Year Warranty - Amazon.com