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XS Bore Guide for DPMS GII

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Fits AR's 5.56 to .30 caliber

View Written Installation Instructions.

Works on any receiver designed around the standard AR15/M16 bolt carrier diameter, or any AR15 with a bore diameter of .308” or smaller. 

If the bore diameter is bigger than .308”, you won’t be able to get a jag with a patch on it to go through our bore guide.


Prop 65 warning WARNING: This product can expose you to lead, which is known to the State of California to cause cancer and birth defects or reproductive harm. (For more information go to

Non-Tritium Products — XS Sights warrants all non-tritium products to be free from defects in material and workmanship. This warranty applies only to the original purchaser. Proof of purchase is required for an RMA. If this product is found to be defective, the manufacturer's only obligation is to replace the product at the manufacturer's discretion, provided that the product has not been damaged through misuse, modifications, neglect, or mishandling. This warranty shall not apply to the finish on any portion of the product or weathering, as this is considered normal wear and tear. Sights improperly installed are not subject to warranty. — XS Sights only warrants products sold through authorized resellers. — All international sales are final and do not qualify for this warranty policy. Some authorized international resellers carry common warranty items to provide for their customers. For more information, please see our International Shipping Policy.

1 Review

  • 5
    xs bore guide

    Posted by gilbert s ontiveros on Feb 26th 2022

    One of the best built bore guide I have ever used. It fit perfectly on both my ARS and really helps in preventing excess cleaning solutions dripping into the lower receiver.