Suitable: VFC AR/ M4 Series Ver.2 GBB Material: Metal Weight: 350g Feature: For VFC AR/ M4 Series GBB ( Version 2 ) Drop-In Replacement Increase of Rate of Fire to 18 Rounds per Second ( may Differ Based on Gas Pressure and Inner Barrel Length/ Weight of BBs ) For Converting of AR15 to Non-Stock or Folding-Stock Modles Maintain Bolt Locking Function of GBB
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