Description
Converts M16 x 1 left-hand metric barrels to 578-28 right-hand threads. Gen 2 17-4 stainless with a deep black nitride finish. Clean, precise machining. Not a silencer.
Bridge metric to imperial cleanly. This Gen 2 adapter converts M16 x 1 LH barrel threads to 578-28 RH so you can run U.S.-standard devices on European-pattern barrels. Machined from 17-4 stainless and finished in black nitride for hardness and corrosion resistance, it keeps a crisp, minimal profile while maintaining concentricity for reliable alignment. Adapter only; no sound reduction.
Key features
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Barrel side: M16 x 1 LH
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Device side: 578-28 RH (also written 0.578-28 or 0.578x28)
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17-4 stainless steel with black nitride finish
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Clean profile with sharp, precise edges
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Adapter only; not a silencer
Details
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Material: 17-4 stainless steel
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Finish: Black nitride
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Generation: Gen 2
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Orientation: LH metric (barrel) to RH imperial (device)
Compatibility
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Fits barrels threaded M16 x 1 LH
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Accepts devices threaded 578-28 RH
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Do not stack multiple adapters; verify alignment before use
