Wow I hate how half the NS users are ignorant as fuck.
Listen, if you're into the 50/50 scene, you'll better yourself by investing in a clear lens.
Now trust I've tried it all, Pink Iridium, Blue Iridium, Grey Polarized, Hi Yellow, Fire iridium, and clear.
I ended keeping my fire and using it during the day and using my clear during the night. You can get a super cheap deal if hunt well enough. I would say the range of 30-40 bucks is well worth the investment.
Go to the official crowbar part trade thread and search around, I'm sure someone will sell you one for 25 shipped.
Pink Iridium is SHIT, you end up squinting like a mofo because you can't see if thats a rock or a fox ahead.