Gibbz G4 Side Charging Upper Dust Cover
Description
This is a dust cover for a Gibbz Arms G4 side charging upper receiver. The upper angle of the Top Attachment is designed to fit against an Aero Precision Ultralight 30 mm Scope Mount, but the scope mount is not required. The dust cover is held closed when the rifles BCG is forward by two disk magnets. When the bolt is pulled back, the center cam rides a ridge in the BCG and is assisted open by the spring. The dust cover should NOT be closed until the BCG has cooled as the melting point of PLA is 170-180C and melted plastic on your bolt/in your chamber is bad for business.
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