King Arms Max 11 MK2 Kit For KWA/KSC M11 -Toy Airsoft Part
 
Mainly made by Aluminum & Steel By CNC Machine
2 difference lenghts of tactical rails for options
Fit to KSC/KWA Gen 1 (NS1) & System 7 (NS2)
Barrel adapter must be purchased if assembling with HFC M11 Gen 1 (NS1)