Definitely worth the 100 if your marker is worth it Got it one the mini gs le fire and the pictures shown above dont do just how great it came out only flaw if any is there are what i would call seams maybe where the laser couldn't fully wrap around but it was less than a cm gap so no biggie(look at their video on YouTube and u will understand why) it doesn't dig deep into the marker that it leaves grooves but definitely deep enough u cant just try to buff it out