Rest Buttons – Spherical Press Fit

Made from cold finished steel. Carburized and hardened with a black oxide finish. Ground insert diameter tolerance ±.0005″.


S&W P/N Button Dia (A) Insert Dia (B) Button Height (C) Total Height (D) Button Radius (E)
RSPF-25 5/16 0.1890 1/8 3/8 1/2
RSPF-27 3/8 0.2515 3/16 1/2 5/8
RSPF-29 1/2 0.3765 3/16 9/16 3/4
RSPF-31 1/2 0.3765 1/4 5/8 3/4
RSPF-33 1/2 0.3765 3/8 3/4 3/4
RSPF-35 1/2 0.3765 1/2 7/8 3/4
RSPF-37 3/4 0.500 5/8 1-1/4 3/4
RSPF-39 1 0.625 3/4 1-1/2 1
RSPF-41 1 0.625 1 1-3/4 1
RSPF-43 1-1/4 0.750 1-1/4 2-1/8 1-1/4