This is a Wilson Combat Slide Stop known as the Bullet Proof, model 414S.
The slide stop takes an unbelievable pounding in a 1911 Auto making it vulnerable to breakage & wear. Bullet Proof Slide Stops are fully machined from solid bar stock with extra metal left in critical areas for added durability. Bullet Proof Slide Stops have a built in detent" serrated top and maximum tolerance shaft.
Features:
Machined from Solid Bar Stock
Extra Metal Left in Critical Areas for Added Durability
Heat Treated
