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4

Maple Leaf Hummingbird Short-Stroke Bolt Assembly for GHK AR / M4 GBB Series

NO. : MapleLeaf-MLC-SSB-GHK
$121.00 $114.95
Specification:
  • 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​

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