The Ed Brown Machined Ambidextrous Wide Thumb Safety provides a large pad for quick actuation of the safety. This version is fully machined from stock for unbeatable quality and no chance of warping or porosity. This design uses a special hammer pin (included) to hold the safety securely, eliminating the need to modify the grips. Designed for all 1911 type frames and made from high quality steel. Available in blued or stainless steel. Requires minor gunsmith fitting for safe operation and includes complete instructions. Mfg: Ed Brown SPECS: Fits – All 1911 type frames.