• MADE FOR HPA

  • ULTRA LIGHT

  • HIGH GRADE ALUMINIUM

  • MFCU READY

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  • Monk Customs presents: CSG! The first HPA only gearbox out there. With the split gearbox design doing maintanence on your HPA engine is no longer a hassle, just remove your upper and you are able to service your HPA engine without removing the gearbox from the lower receiver and having to unscrew your grip.

  • Apart from that its a perfect marriage with the new MFCU that will fit perfectly in CSG gearbox adding ample space to your ESG HPA Grip.