Skylerbone
Member
I have one 1911 with the notch and one without. And I haven't fired either enough to notice a difference. Even if I did, there is enough difference with the two firearms that any benefit could be the result of something else. To put it in scientific method terms, too many variables. The 1911 with the notch does shoot smoother. But that maybe because I have tuned the trigger. And the leaf spring. Have better parts in that 1911 etc.
That area, on 1911s and nearly every other semi-auto pistol usually gets brass discoloration by running over the stacked rounds in the magazine. The notch seems to reduce the brass rub off to a degree.
Would love to see pictures if available.