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Assemble your AR15 upper receiver using the Aero Precision AR15 Upper Parts Kit. This parts kit from Aero Precision includes forward-assist assembly, forward-assist spring, forward-assist roll pin, ejection-port cover door, ejection-port cover rod
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Complete your custom slide with the Zaffiri Precision GLOCK 19 Gen 1-3 Upper Parts Kit. It includes firing pin spring, firing pin spacer sleeve, 2 spring cups, firing pin safety, firing pin safety spring, extractor depressor plunger, ext
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Complete your custom slide with the Zaffiri Precision GLOCK 19 Gen 5 Upper Parts Kit. It includes firing pin spring, firing pin spacer sleeve, 2 spring cups, firing pin safety, firing pin safety spring, extractor depressor plunger, extractor