They work. I have them as do a lot of folks.

Edit: Highly recommend buying the side blade protectors sold by a few places.....

Not to persuade you, i was conflicted on mirror blades or art blades ultimately I choose the official art blades after hearing the designer say all the posters were from the tour it really ties the pin together. If ordering mirror blades order from Tilt graphics they have zero issue on fit. Other mirror blades might not fit. Coin door mod sounds cool, hopefully someone will post a pic or link.

https://themodcouplepinball.com/collections/jersey-jack-guns-and-roses/products/jjp-guns-n-roses-custom-coin-door-le-ce-se-shadow-box-mod

My oct build, no way mirrors will fit. I put in tilt art blades and I can't put in both protectors , need to lift it up 2 or 3 inches. Crazy tight

Well I'm a big fan of mirror blades, and unfortunately your rolling the dice on JJP games. The only game I was able to install Mirror blades was Hobbit. All the other games (including GNR) there wasn't enough clearance to make it work. The challenge for u is its not the case for everyone. Some people have had no issues installing the blades. I would wait until u get the game and see for yourself.

September 2021 build and worked for me.

I have an LE and mirror blades from Cointaker fit without a problem.

I highly recommend the coin door mod also... though to fully appreciate it you have to kneel down on the floor to see it straight on

Mirror blades will fit. However, If the Playfield is not perfectly centered, you would have an issue. You may have to adjust the lockdown bar receiver slightly left or right, depending on which side the Playfield is favoring. The lockdown receiver is where the Playfield locks into. My Playfield favored the right side of the cabinet and mirror blades would not fit. I adjusted the lockdown bar a little to the left and the mirror blades fit great with room to lift the Playfield up and down. Good luck.

Good luck on getting them to fit....They had zero chance on my GNR, POTC, and DI....the coin door box is awesome...I've had them on my GNR, and POTC

I have owned all the JJP games, and the only game that blades fit was my Hobbit Smaug (I didn't try on WOZ). The other games weren't even close yet I tried everything. There was so little room on POTC, and DI that standard game blades barely fit. The fact that some have made it work leads me to believe it's a cabinet/play field tolerance issue so theres a chance it may work on your game?

Must be differences based on all the different experiences noted. I’ve owned all of JJPs games and put mirror blades on them all. I think DI may have had the worst fit. I think for GnR I had to trim the black plastic glass channel trim in the back by like 1/8” to be able to slide them in, no big deal, look great. I get them from cointaker.

I don't know how mirror blades would even fit in GNR as the art blades barely fit. There's so little room between the playfield and cabinet on my July 2021 LE. If you put mirror blades or art blades in you must use plastic cabinet protectors every time you raise or lower your playfield. I tore a set of GNR art blades by accidently not having the protectors in place while barely lowering the playfield. Lesson learned.

Nice that yours worked, but my games weren't even close. So much so the art blades barely fit. I could barely keep the plastic blade protectors in place when I raising and lowering the play field.

Exact same on my gnr. Have to raise the field about 3 " to get second protector in.