my previous one was built from bits of the forum,evilbay or chambers .Cost more to build than a new one .It was fitted with a nice spring guide.top hat all from terry robb and a titan spring no preload at all and sat at 11.5 all day long.Only sold it as I had fallen for a winchester sx3 red performance which again I love so they can stay know in the safe together before her in doors notices anymore following me home