Introduction: The goal with this project was to recreate the Elysium style AK rifle modification system as close as possible. All the stickers, markings and engraves were made manually by my own design for the absolute authentic look. Materials: The main material of the Project:Modify is reinforced high quality PLA. It also has a standard 7 segment aluminium rail and steel bolts. How to use: The installation is really easy and user friendly. It takes about 1-2 minute. (Everything that is needed for the installation is included in the package.) To install the aiming system, remove the bolt from its front part. After that you will be able to insert the front iron sight of your AK replica inside it. Once its in the correct spot, screw back that previously removed bolt. It should go directly through the hole in the front sight. Lock the bolt. DO NOT OVER THIGHT IT! Add the zip ties just like you can see on the pictures. To install the small control box remove bolt from it and the mag holder pin from your AK. Place the unit to its position. If everything is fine, the holes should be perfectly aligned. To secure it, use the control unit's bolt only instead of the standard pin. The modify system holds 100% sturdy. It has zero wobble! The installation process does not require any permanent or non-permanent modification or adjustment on your rifle if its one of the compatible variants! Functions: the aiming system serves as a great and authentic visual upgrade to mount aiming devices, flash lights, switches or PEQ boxes on it Compatibility: With both AEG and GBB airsoft AK47, AKM, AK74 and their variants. (Got questions about compatibility? Don't hesitate to ask me!) The package includes: the Modify system itself MIL-STD 1913 - 7 segment rail wired control imitation box blackened stainless steel bolts and nuts 1x long type zip tie 2x short type zip tie Think green: this product is shipped within biodegradble space fillers this product is shipped in recycled cardboard box If you want to upgrade your AK to the future, if you want to join some postapocalyptic event or if you just simply want some unique and quality modification, don't search for any longer because you have already found you were up to! (The larger optic is a Vortex Razor AMG UH-1 gen1 and the smaller one is a Trijicon RMR which are not included in the package.)