Check the listing for details. Killflash 5 Pack | Protect Your Glass Against Airsoft! | Custom Sizes!. Condition: New. Listed at 10.99 USD. Cheaper Over on my Website: vegastryke.bigcartel.com Protect your s**t. Printed out of ASA, Durable Lightweight Heat & UV Resistant Thermoplastic. Honeycomb pattern is wide as and starts in the middle of the red dot as to not obstruct vision on target (your dominant eye should be focusing on target anyways, not on the red dot). These are press fit. I am looking for more measurements on other RDS, Glass sights. Please message me if you have calipers to measure yours and we can work out a deal DISCLAIMERS: THIS IS NOT INTENDED FOR ANY REAL FIREARM PURPOSES. DOING ANY MODIFICATION TO YOUR FIREARM WITH MY PRODUCTS COULD POSSIBLY BE AGAINST THE LAW, NOR DO I WANT ANYTHING TO DO WITH MY PRODUCTS BEING USED IN SUCH A WAY. Printed out of High Performance UV RESISTANT ASA Plastic. THESE WILL NOT DEFORM NOR DISCOLOR UNDER INTENSE WEATHER CONDITIONS