Maple Leaf Hummingbird Short-Stroke Bolt Assembly (GHK / VFC) Air Nozzles and Tappet Plates Guide Hop front-adjustable Hop-Up system

Guide Hop front-adjustable Hop-Up system

and an integrated front sight inside the optic mount

but in a compact and unique package

75″ or 171

-          Sling plate can fit standard QD Sling swivels (sold separately)

Maple Leaf Hummingbird Short-Stroke Bolt Assembly (GHK / VFC) Air Nozzles and Tappet Plates Guide Hop front-adjustable Hop-Up systemDrop 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 Materials: Metal Alloy, Polymer, and Steel mix Note: Not for use in 416 series