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Posted: 8/19/2020 9:48:26 PM EDT
I'm in my garage trying my hand at making this ar15 into an m16. I am using a jig I bought on the internet. Does this hole look right?
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Posted: 8/19/2020 9:59:20 PM EDT
[#1]
What indication would you have that it isn’t correct?
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Posted: 8/19/2020 10:03:41 PM EDT
[#2]
From other photos I've seen, it looks about right
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Posted: 8/19/2020 10:10:42 PM EDT
[#3]
In the neighborhood I’d say....
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Posted: 8/19/2020 10:15:15 PM EDT
[#4]
Looks fine. Install sear, find out.
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Posted: 8/19/2020 10:29:11 PM EDT
[#5]
The hole looks like it is going to cause trouble, if you have a dog go say goodby to him/her now.
Other than that it looks fine 
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Posted: 8/19/2020 10:33:04 PM EDT
[#6]
Good enough.
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Posted: 8/19/2020 10:41:26 PM EDT
[#7]
it function checks fine!
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Posted: 8/19/2020 10:45:45 PM EDT
[#8]
Quote HistoryQuoted: The hole looks like it is going to cause trouble, if you have a dog go say goodby to him/her now. Other than that it looks fine I got 2 dogs. One fo each of ya. |
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Posted: 8/21/2020 2:08:32 PM EDT
[#9]
I have seen a couple lowers with terribly drilled holes work fine.
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Posted: 8/25/2020 10:11:25 AM EDT
[#10]
So can we get to the punchline already?
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Posted: 8/25/2020 10:39:17 AM EDT
[#11]
Well seeing as how he has a dealer account on here, I am assuming he is a 07 FFL with an SOT, and it is perfectly legal for him to manufacture a machinegun for sale or demonstration.
I would advise next time to use one of the now readily available M 16 FCG cut lowers with full auto markings that have come onto the market recently. This eliminates the need to machine out the FCG pocket further or engrave the additional selector position for auto. Literally the only difference between these new lowers and an M 16 is the sear pin hole! Matrix Arms M-16 FCG Spec Lower with 3 Position Pictogram Markings |
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Posted: 8/25/2020 11:14:12 AM EDT
[#12]
Quote HistoryQuoted: Well seeing as how he has a dealer account on here, I am assuming he is a 07 FFL with an SOT, and it is perfectly legal for him to manufacture a machinegun for sale or demonstration. I would advise next time to use one of the now readily available M 16 FCG cut lowers with full auto markings that have come onto the market recently. This eliminates the need to machine out the FCG pocket further or engrave the additional selector position for auto. Literally the only difference between these new lowers and an M 16 is the sear pin hole! Matrix Arms M-16 FCG Spec Lower with 3 Position Pictogram Markings NOW I FIND OUT ABOUT THESE? |
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Posted: 8/26/2020 10:49:52 AM EDT
[#13]
Good price as well.
BCI Defense lowers were $115.00 and they no longer sell them. |
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Posted: 8/27/2020 12:52:16 PM EDT
[#14]
What buffer weight do you plan to use? |
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Posted: 8/27/2020 2:26:29 PM EDT
[#15]
Quote HistoryQuoted: What buffer weight do you plan to use? carbine. |
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Posted: 9/21/2020 2:26:25 PM EDT
[#16]
So out if the 4 lowers I converted. 2 don't appear to have the hammer engaging the sear, it's super close They were drilled with the same jig, same bits, same everything.
What can I do to resolve? |
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Posted: 9/21/2020 3:28:47 PM EDT
[#17]
Whose jig did you use?
Possibly the camera angle but the pic in your OP makes the hole look oblong. Does the sear pin fit in tightly? Any 'unusual' resistance as it entered the opposite side of the lower, meaning that they are 'a bit out of spec' from one side to the other? |
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Posted: 9/21/2020 3:38:25 PM EDT
[#18]
Thought this was a post in GD. Sorry about the distraction, carry on.
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Posted: 9/21/2020 7:21:59 PM EDT
[#19]
Quoted: So out if the 4 lowers I converted. 2 don't appear to have the hammer engaging the sear, it's super close They were drilled with the same jig, same bits, same everything. What can I do to resolve? All 4 of the lowers the same brand? |
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Posted: 9/21/2020 7:33:38 PM EDT
[#20]
Enlarged the pics.
Almost look as though a larger bit or Something cause a chamfer or larger outer diameter around the original hole. The drilled hole does look way out of round and appears to have burrs in it, the OP pic. Back to my question... How did the pins fit? No ill intent, trying to help. |
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Posted: 9/21/2020 8:15:13 PM EDT
[#21]
Quote HistoryQuoted: All 4 of the lowers the same brand? Quote HistoryQuoted: Quoted: So out if the 4 lowers I converted. 2 don't appear to have the hammer engaging the sear, it's super close They were drilled with the same jig, same bits, same everything. What can I do to resolve? All 4 of the lowers the same brand? Identical. Milled out to m16 specs. |
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Posted: 9/21/2020 8:15:46 PM EDT
[#22]
Quote HistoryQuoted: Enlarged the pics. Almost look as though a larger bit or Something cause a chamfer or larger outer diameter around the original hole. The drilled hole does look way out of round and appears to have burrs in it, the OP pic. Back to my question... How did the pins fit? No ill intent, trying to help. Pins fit perfect on all 4. |
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Posted: 9/21/2020 11:43:28 PM EDT
[#23]
Are the full auto lower parts kits all from the same source? And are the issues of the hammer not locking back properly just from testing manually in the lower with no upper, all with the same upper with same bolt carrier, or does each build have its own upper and 2 of them aren't working properly?
Sven Manticore Arms |
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Posted: 12/3/2020 8:33:26 PM EDT
[#24]
At first glance it looks as if the hole was not drilled straight through, but it appears to be an optical illusion as the camera is not directly above the hole. Given that, it looks like it's in the right place - but the bigger issue is the engraving was, ah, unfortunate. lol. i'd bet it works fine.
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Posted: 12/25/2020 11:04:45 AM EDT
[#25]
Quote HistoryQuoted: Are the full auto lower parts kits all from the same source? And are the issues of the hammer not locking back properly just from testing manually in the lower with no upper, all with the same upper with same bolt carrier, or does each build have its own upper and 2 of them aren't working properly? Sven Manticore Arms What jig did you use? |
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