- for GHK M4 GBB
- Licensed by Salient Arms International
- Made from heat-treated medium carbon steel
- Titanium Nitride (TiN) coating for superior surface-wear resistance
- Nice heavyweight feel for more realistic handling and feedback
- Bolt carrier keyway is held in place by 2x long thread heat-treated screws
- Direct drop-in performance part, easy to install with minimal to no modification necessary
- Compatibility: For GHK M4 GBB
- Material: Heat-treated, TiN coated medium-carbon steel
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