Kerm-Lock Universal Rail Adapter: Making Standard Hand-guards Modular Again
STL file AAP-01 | ADAPTER TO M4 HANDGUARD M-LOCK 🔧・Template to download and 3D print・Cults
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