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raimius · June 29, 2015, 02:20 AM

If the hammer drops without the trigger being pulled, it is a DANGEROUS firearm.
The M1911A1 is not supposed to do that. Get it fixed (probably not by the guy who broke it).

I had that same issue, because I tweaked the sear spring during a detail strip/reassembly. The next time at the range, the hammer followed the slide once or twice on loading (within about 200rds). The third time the hammer followed the slide, it did so with enough force to fire the round in the chamber! (Thankfully, following the 4 Rules includes muzzle discipline, and the round hit somewhere 50-110yds downrange.)
The trigger was reset to 3.5lbs, from the 2.5lbs I had it set to. That fixed the issue.

June 29, 2015, 02:20 AM	#30
raimius Senior Member Join Date: January 27, 2008 Posts: 2,199	If the hammer drops without the trigger being pulled, it is a DANGEROUS firearm. The M1911A1 is not supposed to do that. Get it fixed (probably not by the guy who broke it). I had that same issue, because I tweaked the sear spring during a detail strip/reassembly. The next time at the range, the hammer followed the slide once or twice on loading (within about 200rds). The third time the hammer followed the slide, it did so with enough force to fire the round in the chamber! (Thankfully, following the 4 Rules includes muzzle discipline, and the round hit somewhere 50-110yds downrange.) The trigger was reset to 3.5lbs, from the 2.5lbs I had it set to. That fixed the issue.