My friends and I want to go but some are 17, do they need to get a waiver signed?

We have waiver forms downloadable here https://www.enchambered.com/about-us/release/

Yes their parents must sign a waiver, you can print it out on the website

My friend and I went alone, both of us were 16, so before going we had to print out the waiver forms on their website and get parent signatures. I hope that helps!

You sign a waiver when you go regardless of age but they may need to have a parents signature of under the age requirement

I think everyone will need to sign some type of liability waiver, regardless of age.