Colt M1911 Machine Pistol, 1930s On: May 31, 2018October 29, 2018 By: Romeyn 5 (1) Developed by Colt in the 1930s. The rate of fire is listed at 700 rounds per minute, using an oversized 25 round magazine How useful was this post? Click on a star to rate it! Submit Rating Average rating 5 / 5. Vote count: 1 No votes so far! Be the first to rate this post. Share this:XFacebookTumblrRedditEmailPrint