ESD ER-15 GBB 10.5"(No marking /No Handguard & Stock）
ESD ER-15 GBB 14.5"(No marking /No Handguard & Stock)
ESD - BCM-Style Steel Ambidextrous Selector /Safety For VFC M4 /HK416 GBB Series
ESD - Steel Bolt Carrier for ER-15 GBB Series (VFC M4 GBB Series Compatible)
ESD - Steel Valve Knocker Set For VFC/Umarex HK416A5 Gen2 GBB /VFC KAC SR-16 E3
ESD - Steel Valve Knocker Set For ER-15 GBB Series (VFC M4 /HK416D GBB System C
ESD Drum Magazine Adapter for KWA / KSC MP9 / TP9 GBB Series
ESD Drum Magazine Adapter for KWA / KSC MP7 GBB
ESD - Drum Mag Adapter For GHK AK GBB Series（WE /AW Drum Mag Required）
