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For CompM5s & CompM5b sights™; 39 mm

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For Aimpoint® CompM5 Series sights

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For mounting Acro sights on Optic Ready (OR) Silencerco Maxim 9 handguns.

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For mounting Acro sights on Glock handguns

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For mounting Acro sights on Optic Ready (OR) Walther Q5 Match handguns.

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For mounting ACRO sights on optic ready CZ P-10 C OR handguns.

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For Comp®, PRO, ACO, 9000 series™ sights.

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For Comp, PRO, ACO, 9000 series™ sights.

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Spacer for ring base & top, TwistMount™, and discontinued QRP/QRW mounts.

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For CompC3™, M3™ and ML3™

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For CompM2™, ML2™, M3™and ML3™

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For Comp® M4, Comp® M3 and PRO™