May 9, 2024 · The problems with MIM parts in guns boils down to choosing some parts that are incompatible with MIM (Colt extractors come to mind)and bad manufacturing processes that stem …

Mar 10, 2026 · Curious as to what parts are MIM on a Springfield Mil-Spec. Wondering if there are any particular parts I should look at or keep an eye on, or look to replace. TIA

Aug 31, 2001 · MIM is Metal Injection Moulding. I't a step up in the "sintered metal" process of producing a part that is close to if not dimensionally correct without extra machining. It works like this; powdered …

Mar 24, 2026 · I understand the concern about MIM parts. Over the past couple decades, I've owned various manufacturer's guns with MIM parts. No MIM part ever caused an issue...

Apr 5, 2025 · MIM, forged, machined, cast—they can all be done right, and they can all be done wrong. Kimber and Smith of certain eras were bad MIM. Metal sintering reduces dimensions and still …

May 18, 2010 · Newbie here. I'm wondering if there are any MIM parts in the new MC Operator. Regardless, should I or should I not worry, and why?

Oct 13, 2025 · MIM is powdered metal pressed into near net shape, then sintered (heated enough to melt only the outer surfaces of each powder particle) This precludes grain growth throughout the …

Nov 25, 2024 · Does anyone know which parts are MIM on the New, or any, Sig 1911s? The reason I’m asking is the right side ambi safety broke on me today while dryfiring. I only have 100 rnds through …

May 20, 2024 · How can I tell if my Tisas has MIM parts? Of my four Tisas models three of them say "TISAS KNOXVILLE TN" and one says "SDS KNOXVILLE TN". I suspect that the model labeled …

Aug 19, 2003 · MIM (like cast) is subject to casting voids (air bubbles) defects as well as metal powder size variation defects, just to name the two biggest. IMO, it is not suitable for use in long, thin parts …