This expert guide from Brownells, presented by Caleb, details the key internal differences between the 1911 Series 70 and Series 80 models. It highlights the Series 80's firing pin safety mechanism in the slide and the corresponding arm on the disconnector in the frame, which are absent in the Series 70. The guide also touches on grip safety variations and the process for converting a Series 80 to a Series 70, often done to achieve a superior trigger pull. The information is valuable for gunsmiths and enthusiasts undertaking custom builds or modifications.
The Colt Double Eagle is critically reviewed as a failed attempt to modernize the 1911 platform with a double-action mechanism. While featuring interchangeable slides and barrels with the 1911 Series 80, its design is considered an 'abomination' with poor ergonomics, a thick grip, and a tendency to point low. Reliability issues and comparisons to the Colt Lightning revolver lead to a recommendation only for collectors.
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