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KAC M4 Rail Adapter System- MOD Armory
Colt Plastic Handguard and CQB Rail Adapter Kit
Matrix AK to M4 Conversion Key Adapter (For AK Airsoft AEG to use M4 Series Front End), Accessories & Parts, External Parts, AK External Parts, AK Conversion Kits - Evike.com Airsoft Superstore