Machined stainless steel and titanium struts keep the hammer under mainspring tension even at the X"Xhammer-downX"X position. Improved radius prevents the strut from contacting the sear spring and prevents interference with most grip safeties. Mfg: Egw SPECS: Stainless steel or Titanium, matte finish, silver .2.2X"X(5.5cm) long , fits 1911 Govt. & Commander.