The Spacer Sleeve is used to replace the space that the Fire Ring Pin normally would use if the fiber optic is being used to aim. The Spacer Sleeve is used when you are using dots or mask rings for aiming.
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Please note that orders may take a few business days to fill before they are ready for your selected shipment method.
WARNING: This product can expose you to chemicals including Nickel Acetate, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.