So Many AR-18 Derivatives: How Come? What About Armalite's Patents?
Bloke on the Range
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24m
From the late 70's onwards, a number of AR-18 derivative rifles start to appear on the world markets. Given that Armalite's patenting game around the AR-10 and AR-15 systems was so on-point, how come they didn't have a patent preventing such things as the Steyr AUG, Enfield SA80 (L85), Sterling SAR-80, Leader T2 and others?