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Posted: 4/21/2011 3:12:32 PM EDT
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So, I just put together my first lower last night
(got it done after about 2 hours spent on my hands and knees looking for a pivot pin detent after it shot across my kitchen) The question I have is while checking trigger function, is it normal for the disconnector to not engage the hammer unless I let up on the trigger slightly? It will grab the hammer if I let the trigger move forward a millimeter or two from the end of its travel. If the disconnector were to not catch the hammer when fired, would it go full-auto, or fire out of battery and do damage |
| the disco should catch the hammer even with the trigger all the way back. If the disco does not reliably engage, the gun could go full auto if the timing is right. More likely the hammer will fall before the bolt is in battery - this should not result in a discharge as the firing pin can't hit the primer. |
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geez, only one reply./?
I found a video from midway on trigger installation; http://www.youtube.com/watch?v=OPomHJtqotU if you watch at about 2:13, when he does a function check, it looks like the same thing happens if you watch the trigger. Is this not normal? I'm hoping a few people will chime in and say they have to let off the trigger to get the disconnect to engage (and I mean a little bit). I really don't want to have to buy a new trigger before I even get to shoot this thing, but don't think I'll be able to trust this one if no one else's works like this. If this is not working properly, would I be making a mistake in trying to remove some material from the disconnect to get it to move far enough to grab the hammer? |
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It's not the disconnector releasing the hammer, it's when it grabs onto (or rather does not grab) the hammer.
With the trigger pulled all the way back, I cannot get the disconnector to grab the hammer, unless I let the trigger out ever so slightly (about 1-2mm). After that, it engages the hammer just fine, and when the trigger is fully released, it catches on the sear. It's like there's not enough movement in the disconnector to get over the milled surface on the hammer. If you watch the video very closely it appears to do what mine is doing, but I'm not sure. Watch his trigger finger when the disconnector engages (not releases), it appears to move slightly forward; on mine it will not engage unless I do this (let off on the trigger). Just to re-iterate and make sure we're talking about the same thing, I dont mean letting off the trigger completely, leaving the hammer on the trigger searr, I mean having to let off a bit for the disconnect to grab it in the first place. Also, dont know if it's worth mentioning, but it's a trigger group from a CMMG lower parts kit (not real impressed with the quality of the parts). @ KBAD: I love your avatar; one of the best scenes in any movie. My 6yr old son will respond to "Dirka Dirka" with "Muhammad, jihad". My wife doesn't think it's that funny, but I think it's hilarious. (havent actually let him watch the movie, that would probably be kinda inappropriate) |
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