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I want to shorten a 870 magazine tube and re-thread the end. Anyone know the correct type and pitch of the the threads? Thanks.

My question is 1.where is Kuhnhausen referencing his measurements for factory sear standard double-action sear let out; these archaic line drawing illustrations (Heritage) throughout the book are difficult to interpret on small parts. 2. Sear strut clearance cut space Please use Letter...

Gentlemen, I understand that the S&W revolver "radius stud package" was introduced ~1988 subsequent to their discontinuing pinning the barrel; the purpose of which was a safety measure. Internet search name drops "radius stud package" by the zillions......no explanation offered and no photos...

In the past I have used thin strips of fine grit sand paper to pulley motion polish the machine marks off the hammer / trigger / cylinder stop pins. The hammer pin is always the easiest as there is generally more room for finger tips to work in that space; the cylinder stop pin area is...

Is it too obsessive compulsive to shim the lateral slack out of revolver trigger strut linkages ? Anyone doing / done it ?

Guys, like the title states I have a 1981 3" Model 65 that I am considering changing out the front sight. It appears to have a tapered pin retention, installed left to right, as the left side diameter appears slightly larger than the right side. Is this sight pinned and if so, punch out or...

I have been reviewing recommended gunsmith methods, ~1940 to present day, of removing a unfired cartridge stuck in the chamber; I am particularly interested in determining if its possible to have a consensus of professionals as to approach sequence or a recommended safe algorithm for a specific...