Oversized Firing Pin Stop – Series 70 – .45 ACP – Blue

Firing Pin Stop Cut for Adjustable Sight

Improve reliability and control in your Series 70 1911 with the EGW oversized firing pin stop. EGW machines this part wider than standard to keep the extractor from rotating. As a result, the extractor maintains proper tension, and ejection becomes more consistent and predictable.

EGW also makes this firing pin stop thicker than factory parts. This added thickness removes lateral movement in the slide, which helps stabilize the extractor and firing pin system. Together, these features create a smoother, more controlled cycling action.

To increase durability, EGW radiuses the inside corners. These radiused corners reduce stress and help prevent cracking over long-term use. In addition, the rear corner features a precise .015-inch radius. This design breaks the sharp edge while keeping a square profile, which slows initial slide opening and softens recoil impulse without sacrificing reliability.

Each firing pin stop is Rockwell tested to 48 Rc, ensuring consistent hardness and long service life. Because this part is intentionally oversized, it is not a drop-in component. Proper fitting is required to achieve the performance benefits described above.

Simply put—it works.

Key Features

• Oversized width prevents extractor rotation

• Increased thickness eliminates lateral movement

• Radiused internal corners reduce cracking and extend service life

• .015″ rear radius maintains a square edge to slow slide opening

• Rockwell tested to 48 Rc for strength and durability

• Designed for adjustable rear sight cuts

Compatibility Notes

• Fits Series 70 1911 pistols

• Series 70 firing pin stops only work in Series 70 guns

• Series 80 firing pin stops will work in Series 70 guns

Specifications

• Material: Stainless Steel

• Finish: Blue

• Caliber: .45 ACP

• Series: 70

• Hardness: 48 Rc

• Drop-In: No (fitting required)

This EGW oversized firing pin stop is an excellent upgrade for shooters who want better extractor control, smoother cycling, and proven durability in a properly fit Series 70 1911.