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Posted: 11/19/2017 10:43:24 PM EDT
[#1]
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Posted: 11/19/2017 10:58:18 PM EDT
[#2]
Thank you Kitbuilder.
To confirm, will that BCI lower accept the M16 FCG with auto sear (obvously after drilling the required hole) and function FA? |
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Posted: 11/19/2017 11:49:43 PM EDT
[#3]
That's what I read.
https://www.ar15.com/forums/ar-15/A-word-from-U-S-Anodizing/123-719099/#i7535160 I haven't tried it myself. It looks the same to me. |
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Posted: 11/20/2017 12:01:06 AM EDT
[#4]
Quote HistoryQuoted:
That's what I read. https://www.ar15.com/forums/ar-15/A-word-from-U-S-Anodizing/123-719099/#i7535160 I haven't tried it myself. It looks the same to me. |
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Posted: 11/20/2017 1:03:27 AM EDT
[#5]
I think sons of liberty gunworks does as well but have never checked(I'm not a sot so I don't care).
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Posted: 11/21/2017 12:08:39 AM EDT
[#6]
I got lowers from black creek precision in Florida that are cut to m16 spec. They refer to it as the lightened cut. They apparently are the Oem mfr for a bunch of other manufacturers. I do not know if all the lowers they produce are built to same spec.
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Posted: 11/21/2017 1:36:36 AM EDT
[#7]
That's what they show in their photos.
http://blackcreekprecision.com/parts-accessories/lower-receivers/black-creek-precision-model-f15-5-56-forged-lower-receiver.html |
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Posted: 11/21/2017 9:24:48 PM EDT
[#8]
I bought one from BCI. Thanks fellas
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Posted: 11/22/2017 1:33:59 PM EDT
[#9]
Quote HistoryQuoted:
That's what they show in their photos. http://blackcreekprecision.com/media/catalog/product/cache/1/image/650x/f7563780e9370b5c2719c50ea1d253a2/0/5/0520161128a_2__1.jpg http://blackcreekprecision.com/parts-accessories/lower-receivers/black-creek-precision-model-f15-5-56-forged-lower-receiver.html And what is the hole in the back for? |
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Posted: 11/22/2017 3:51:12 PM EDT
[#10]
Quote HistoryQuoted: That is not cut to M16 spec. And what is the hole in the back for? "The lower is also threaded for a 1/4"-28 nylon tipped upper receiver tensioning screw." So what makes it not M16? Just curious. That's an interesting lower if you read the specs. Like that feature above and the threaded bolt catch and takedown pin are nice, especially for the price. |
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Posted: 11/22/2017 3:56:32 PM EDT
[#11]
Quote HistoryQuoted: per their description: "The lower is also threaded for a 1/4"-28 nylon tipped upper receiver tensioning screw." So what makes it not M16? Just curious. That's an interesting lower if you read the specs. Like that feature above and the threaded bolt catch and takedown pin are nice, especially for the price. What is not milspec is it is not milled to the bottom on left side near back by selector hole. Tail of sear may or may not work. Same area is not milled enough on bottom over to the right either. Can't be sure, but it is not milspec, see milspec below: 
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Posted: 11/22/2017 4:07:56 PM EDT
[#12]
Quote HistoryQuoted: thx, never heard of a tensioningscrew. |
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Posted: 11/22/2017 4:10:08 PM EDT
[#13]
Quote HistoryQuoted: MEGA offered the tensioning screw on some of their lowers too. Kind of the same idea as an Accu-Wedge to make the upper and lower interface tighter. |
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Posted: 1/30/2018 9:15:20 AM EDT
[#14]
Only thing required on the BCI Defense lower is drilling the hole (bowers style jig on Gunbroker work well). I just made one a couple weeks ago on a BCI.
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