Garmin STRIKER Plus 4 4.3" Fishfinder | CHIRP Sonar | GPSEntry tier 4. 3" CHIRP + GPS + Quickdraw Contours fishfinder. Step up from STRIKER 4, adds lake mapping as you fish. Still under $200. Garmin STRIKER Plus 4 The Garmin STRIKER Plus 4 is the Quickdraw Contours version of the entry tier, the "Plus" in the name refers to Quickdraw Contours, Garmin's lake mapping as you fish feature. Priced at $179, it sits right above the STRIKER 4 and delivers the same CHIRP traditional sonar plus the ability to record