Helios Daniel Defense Licensed MK18 Airsoft AEG Rifle Edge Series / Black & Bronze advanced Nine Ball Heat Gradation screw

Nine Ball Heat Gradation screw set

Inner Barrel Length: 113mm

FPS Range: 300-325

To mount it to the SSE18 you need this red dot plate

and to prevent damage to electronic switches on controller boards

Helios Daniel Defense Licensed MK18 Airsoft AEG Rifle Edge Series / Black & Bronze advanced Nine Ball Heat Gradation screwFeatures Aluminum alloy upper and lower receiver with deep laser engraved Daniel Defense trademarks Scratch and weather resistant nano coating Nylon fiber furniture GATE X ASR Mosfet ESA quick spring change system allows the spring to be changed without the need to disassemble your gun Rotary type hopup with 6. 03mm tight bore barrel 380 fps spring pre installed from factory, optional 310 fps (M90) spring included to reduce muzzle velocity New Orion