Most
firing pin stops are cheap, mass produced, stamped parts, but they're not Bullet
Proof either. A Bullet Proof firing pin stop is fully machined from super
tough bar stock steel with great care to radius all corners resulting in a part
that is many times stronger than a standard firing pin stop. A quality
firing pin stop should fit snuggly in place, therefore this part does require
minor fitting to your particular pistol for a perfect fit.