5KU Aluminum Reflex Sight Rear Sight Mount for AK Series AEG Rifles

"This will not fit T1 style optics. It only fits the Burris Fastfire III type optic. Beyond that, I tried installing this on an LCT and an E&L, and it was a No-Go on both platforms. Another user may be successful with it, but it's dependent on the trueness of the gas block casting, which on airsoft guns is iffy at best. Stick with front handguard top rail mount, or receiver side mount for better results.