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The answer is ArmaLite's new 1-inch & 30-mm mounts that are 1.45-inches to the center of the optic, an increase of .2 inch. This ArmaLite engineered and manufactured scope mount is a most welcome advance in firearms ergonomics.
ArmaLite has one of the broadest product lines in the firearms industry. The company manufactures and sells semi-automatic rifles in a variety of chamberings, including 5.56 NATO and 7.62 NATO, long range super-accurate bolt-action rifles in chamberings including .308 Win., .300 Win. Mag., .338 Lapua Mag. and 50 BMG and classic 9 mm pistols.