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Posted: 5/16/2023 10:19:12 PM EDT
[#1]
80% build?
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Posted: 5/16/2023 11:09:13 PM EDT
[#2]
Any information about the build would help us know what you have in your hands. What is the make of the lower receiver, type & brand of the trigger group, and is the safety selector a factory that came with the trigger group or is it an aftermarket. Also is the safety and safety selector detent installed correctly, meaning is the safety selector installed with the detent track on the right side of the weapon and the detent installed with the pointy coned shaped end upwards so it mates with the detent track on the safety selector?
CY6 Greg Sullivan "Sully" SLR15 Rifles DefensiveEdge.com (763) 712-0123 |
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Posted: 5/16/2023 11:21:00 PM EDT
[#3]
Lets back this up, and if the hammer is not cocked back for the trigger to hold it this way, then selector should not be able to be placed in safe.
Hence bottom lob of the hammer will cock the back of the trigger up upwards when hammer is down, and with back of trigger upwards, blocks the selector from being able to be placed in safe mode. And yes, this is a feature, to tell you if the hammer has been cocked or not when dark 30 and your working from feel alone. |
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Posted: 5/17/2023 5:36:44 AM EDT
[#4]
This is an 80% lower build for my in-laws. It’s 5D tacticals lower with the complete mil-spec lower parts kit that comes from their website. The detent and spring are installed correctly. The safety snaps into fire/safe nicely when the hammer is cocked. When the hammer is not cocked, the safety is supposed to stay on safe. It can snap out of safe by 15-20 degrees.
I also used their jig to mill their lower with the guides for the safety’s, trigger and hammer pins https://www.5dtactical.com/products/mil-spec-ar-15-lower-parts-kit/ |
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Posted: 5/17/2023 8:03:55 AM EDT
[#5]
My theory on what the problem is:
You really need to use a drill press to drill the safety and FCG holes. Those bushings in that jig are not hardened and those bits can walk if they are perpendicular to the receiver. |
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Posted: 5/17/2023 8:50:45 AM EDT
[#6]
Quote HistoryQuoted: This is an 80% lower build for my in-laws. It’s 5D tacticals lower with the complete mil-spec lower parts kit that comes from their website. The detent and spring are installed correctly. The safety snaps into fire/safe nicely when the hammer is cocked. When the hammer is not cocked, the safety is supposed to stay on safe. It can snap out of safe by 15-20 degrees. I also used their jig to mill their lower with the guides for the safety’s, trigger and hammer pins https://www.5dtactical.com/products/mil-spec-ar-15-lower-parts-kit/ Somethings wrong, if the hammer is not cocked, the safety should not be able to be moved to the safe position. My guess, either the safety hole or trigger/hammer pin holes are off. |
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Posted: 5/17/2023 9:24:52 AM EDT
[#7]
I don't think there is a problem.
The selector wiggles a bit. 15-20 degrees is nowhere near 90 to go on safe. It just sounds like tolerance stacking allowing some play. |
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Posted: 5/17/2023 10:08:08 AM EDT
[#8]
This video has some information. From about 1:50 to 2:50 is informative in reference to the safety.
https://youtu.be/ZUnTIo8KWYA |
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Posted: 5/17/2023 10:09:29 AM EDT
[#9]
You’re correct. I misspoke as I woke up at 4am and decided to check on this
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Posted: 5/17/2023 10:15:24 AM EDT
[#10]
Quote HistoryQuoted: This video has some information. From about 1:50 to 2:50 is informative in reference to the safety. https://youtu.be/ZUnTIo8KWYA Okay. My safety moves approximately out of fire like this guys, though his had even more play than mine. So I should assume I have a safe lower when it comes to the safety selector then? |
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Posted: 5/17/2023 10:16:44 AM EDT
[#11]
Quote HistoryQuoted: I don't think there is a problem. The selector wiggles a bit. 15-20 degrees is nowhere near 90 to go on safe. It just sounds like tolerance stacking allowing some play. It may be just a tolerance thing. I guess I just expected a tighter tolerance and was wondering if there was a way to shim it to make it a little tighter. |
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Posted: 5/17/2023 10:20:01 AM EDT
[#12]
There are a bunch of videos on youtube showing one or more ways to function check a trigger group. Some are better than others.
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Posted: 5/17/2023 10:24:17 AM EDT
[#13]
Quote HistoryQuoted: There are a bunch of videos on youtube showing one or more ways to function check a trigger group. Some are better than others. Thank you. I’ll check them out. This is my first build, so I wasn’t sure what to expect. |
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Posted: 5/17/2023 11:30:45 PM EDT
[#14]
Selector has to be in fire to be able to pull the trigger to get the hammer down.
From here with hammer down, should be able to move the selector a touch towards safe, but should not be able to move the selector all the way to the safe postion with the hammer still down. |
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Posted: 5/21/2023 12:39:59 PM EDT
[#15]
Being an 80% it's highly likely that things are a touch off, but if it passes a function check, then it should be perfectly fine to use. Doesn't fire when hammer is back and on safe? Doesn't go on safe when hammer is forward? Run that shit.
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