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Posted: 10/19/2012 9:24:34 AM EDT
| For academic purposes what would cause an FAL rifle to double? Fire two rounds with one pull of the trigger....Now assume that more than one lower was used, essentially isolating the problem away from the hammer/sear and the rifle still continued to double..... |
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I've been dealing with this also. Some double taps and some more than double. Regardless how I'm holding the rifle or who is shooting it. Random too. I checked all the lower internals (FSE) and they look good. Firing pin is cleaned after every outing and spring has good tension. To be honest, the firing pin spring is the only thing I can think of to change. |
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I've been dealing with this also. Some double taps and some more than double. Regardless how I'm holding the rifle or who is shooting it. Random too. I checked all the lower internals (FSE) and they look good. Firing pin is cleaned after every outing and spring has good tension. To be honest, the firing pin spring is the only thing I can think of to change. Well, my thought was if it continued to do it after the lower was changed out that HAS to mean it's something in the upper- the lower used was "known good". The only thing I was thinking it COULD be at that point is some kind of bolt issue.....just not sure what it would be.... |
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Do all of your lower receivers have USA made FCG's installed? No. Not entirely but there is the US parts (count) issue of course...... Usually when someone has an issue with doubling it's due to a US made FCG or modified FCG. A lot of people try to "improve" the trigger pull by grinding on the sear and hammer. Then they throw in a hammer spring that's too light. I would try a unmodified OEM hammer, sear and hammer spring to see if it still happens. It's highly unlikely that the upper has anything to do with it. |
| Plot thickens. Bolt torn down to replace FP and Spring. I notice two things 1. Bolt will not retract far enough to allow the hold open to work 2. After pulling off the top cover I experimented with the trigger. Pull trigger and hammer falls. Manually retract bolt while holding trigger back (practicing proper trigger reset)- once hammer is reset ease trigger forward- HAMMER FALLS! This would tend to suggest a trigger pack problem! However, I don't really understand why the damn bolt won't fully retract- maybe THIS too is related to fire control group? I will swap out for entirely foreign parts and see what happens..... |
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Quoted: Usually when someone has an issue with doubling it's due to a US made FCG or modified FCG. A lot of people try to "improve" the trigger pull by grinding on the sear and hammer. Then they throw in a hammer spring that's too light. I would try a unmodified OEM hammer, sear and hammer spring to see if it still happens. It's highly unlikely that the upper has anything to do with it. I do have the US parts and had put some serious thought into an OEM trigger group. I shall try this. |
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Plot thickens. Bolt torn down to replace FP and Spring. I notice two things 1. Bolt will not retract far enough to allow the hold open to work 2. After pulling off the top cover I experimented with the trigger. Pull trigger and hammer falls. Manually retract bolt while holding trigger back (practicing proper trigger reset)- once hammer is reset ease trigger forward- HAMMER FALLS! This would tend to suggest a trigger pack problem! However, I don't really understand why the damn bolt won't fully retract- maybe THIS too is related to fire control group? I will swap out for entirely foreign parts and see what happens..... That's the ironic thing about US made FAL parts - they are the foreign parts! I would also recommend pulling the butt stock to clean out the recoil spring tube along with the springs/plunger. A lot of junk collects in there. |
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Quoted:
Quoted:
Usually when someone has an issue with doubling it's due to a US made FCG or modified FCG. A lot of people try to "improve" the trigger pull by grinding on the sear and hammer. Then they throw in a hammer spring that's too light. I would try a unmodified OEM hammer, sear and hammer spring to see if it still happens. It's highly unlikely that the upper has anything to do with it. I do have the US parts and had put some serious thought into an OEM trigger group. I shall try this. Yeah, try it out. StG-58 FCG's used to be everywhere for $10 but they've dried up in the last several months. |
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Good news! With Imbel trigger parts the gun runs like a top! It still does not lock back reliably- even by hand so I suspect a couple of possibilities- 1. Crap in the spring tube 2. Busted spring in pieces creating a jam (seen this a couple times over the years actually) 3. Bent Rat tail......Will pull the spring and start there.
Glad that I no longer have an NFA issue...not that I ever did of course...... BTW- suspect trigger parts- FSE. I would shit can yours and try something else. I seem to remember now that they had a bad batch at one point..... |
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Quoted:
Good news! With Imbel trigger parts the gun runs like a top! It still does not lock back reliably- even by hand so I suspect a couple of possibilities- 1. Crap in the spring tube 2. Busted spring in pieces creating a jam (seen this a couple times over the years actually) 3. Bent Rat tail......Will pull the spring and start there. Glad that I no longer have an NFA issue...not that I ever did of course...... BTW- suspect trigger parts- FSE. I would shit can yours and try something else. I seem to remember now that they had a bad batch at one point..... Good to hear. US and "Bubba'd" FCG's are the downfall of many an FAL. |
| Recoil spring looks good, rat tail is straight, no burrs in recoil spring tube or other crud.....bolt just won't go back far enough to lock back on the hold open. It won't go the last 1/2" into the rear of the receiver.......NO friggen idea what this is....Receiver is an Enterprise......Bolt slides freely in and out on dis assembly, doesn't appear to be a receiver issue. |
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