The ERECT9R Direct Mount in M13.5×1 LH is for hosts that don’t play in the 1/2×28 world—like your MPX and other metric-threaded guns that deserve a clean, no-nonsense setup.
Thread it on, snug it down, go shoot.
What it’s good at:
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Letting the ERECT9R run direct-thread on M13.5×1 LH barrels
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Keeping your setup simple and lightweight
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Delivering solid, repeatable alignment
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Making metric hosts just as easy as everything else



