Posted: 12/5/2008 6:30:15 PM EDT
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I recently purchased my 2nd BHP; a former service pistol from a foreign nation.
When function checking it I discovered an issue I'm hoping someone can help diagnose. Starting with a magazine in the pistol, the hammer fully cocked, and the safety engaged, the hammer does not drop once the trigger is pulled. No problem there. However, as soon as the safety is disengaged the hammer drops down into the half-cocked position. I'm thinking there is an issue with either the hammer, sear, or sear spring or a possible combination of the three. Any input will be greatly appreciated. |
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A bad trigger job or a severely worn sear or a bad fit on the safety can cause that. What happens is the sear is moved slightly when the trigger is depressed & the safety is on. When the safety is disengaged the sear slips out of engagement with the hammer & is caught by the half cock notch. I know this because it happened to me. A now out of buisness shop did a "trigger job" & fitted an over sized safety to my HP.
When I got it back I had the same problem. When they polished the sear they changed the angle of the metal on the sear. This caused it to not engage the notch in the hammer properly. To correct it I had to replace the sear & the safety. |
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The machinist who fixed my HP showed me the relationship between sear, safety & hammer. If someone who doesnt really understand what theyre doing starts messing with these parts they can cause a lot of problems. With your pistol empty & cocked with the safety on you can see where the sear engages the hammer if you look between the cocked hammer & the slide. Depress the trigger & see if you can detect any movement in the sear. Mine would move about halfway out of engagement with the safety applied.
As soon as the safety was disengaged it would slip & be caught by the half cock notch. If you cant detect movement in the sear it may be a poorly fit or worn safety. |