Shop-made Lapping Tool

A bright new look at making your own inexpensive tool for lapping bolt lugs.

by Charlie Briggs

As many of you know, lapping the lugs of the bolt and the locking recesses of the receiver in most rifles is an important part of the accurizing process.

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However, until recently, the only way I knew to do this was to first remove the barrel, apply lapping compound to the mating surfaces of the bolt and receiver, and then screw into the receiver a thread-specific tool for that particular brand of rifle. With that all done, the gunsmith uses this set up to put rearward pressure on the bolt and then work the bolt in and out, lapping the aforementioned surfaces.

Here’s how it works…

Read more in the December 2022 issue.

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