I found a blinder M-20 for 200$ from a local guy near me. I'm looking for a good laser jammer and I know the M-20 has since been replaced with the M-40, M-25...etc. My question is, will this jammer still work as other up-to-date jammers? Will it jam every gun on the market today? Any additional information will help on my decision. Thanks a lot guys!
Also, here is the picture of my car. It's a 2007 Chevy cobalt coupe. If you don't recommend the M-20's, what would you recommend?