[SHOT 2018] Patriot Pin
By Nicholas C
The Patriot Pin is a clever method to make California AR-15s compliant. You simply replace your receiver endcap with theirs and the rear takedown pin. Unlike other similar designs, Patriot Pin uses delrin for their takedown pins. Delrin is a self lubricating material so it makes it easy to open and close into the receivers. […]
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Source:: The Firearm Blog
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