Description
  • For GHK AR GBB series
  • 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 BB)
  • For converting of AR15 to non-stock or folding-stock models
  • Maintain bolt locking function of GBB
  • Compatible with old and new versions of GHK M4 GBB