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Description
Engineered for gunsmiths performing custom “oversize” conversions or building high-recoil rifles, this set ensures that the larger 8-40 mounting holes are drilled and tapped with absolute perpendicularity to the receiver’s bore axis.
Hardened, steel Drill Jig Bushing Set for the Universal Sight Mounting Fixture.
8-40 Bushing Set for USMF – UF1000-UB0840


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