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All About the Glock Firing Pin Assembly

Marine Gun Builder covers Glock G19 UPK G17 UPK G20 UPK and G21 UPK firing pin assembly. Glock OEM upper parts kit are being manipulated by sellers who swap out core components and replace them with unsafe and fraudulent parts. This video illustrates what to look for in a Genuine Glock OEM upper parts Kit Gen 3.

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