liber Posted January 23, 2015 Report Share Posted January 23, 2015 I'm about to start an 80% .308. Got the lower and jig from 80percentarms.com. Appreciate the info on required or not required ID on the lower. I intend to have some sort of identifying info, to be certain i can identify the gun should it ever be stolen. Hope to get started on it next week, time permitting. You should have had them engrave it for you. 80percentarms will engrave them for $40 per their website. That would be worth it to get them engraved, that way if you buy the anodized lower, the anodize would be over the top of the engraving and you'd be good to go. It complicates it some if you finish the lower first, as you need an FFL to finish it. Your state may be different, this is true for California. Quote Link to comment Share on other sites More sharing options...
suzukiray Posted January 23, 2015 Author Report Share Posted January 23, 2015 I bought jigs to do both the 15 & the 10, 2 different jigs from 2 different manufacturers. The 15 jig came from the same place I got the 5, 15 lowers from & lined up perfect for milling, just wasn't sized correctly. The 10 I haven't milled yet & won't till I get the upper for it. Ray. Quote Link to comment Share on other sites More sharing options...
slugger43 Posted January 23, 2015 Report Share Posted January 23, 2015 You should have had them engrave it for you. 80percentarms will engrave them for $40 per their website. That would be worth it to get them engraved, that way if you buy the anodized lower, the anodize would be over the top of the engraving and you'd be good to go. It complicates it some if you finish the lower first, as you need an FFL to finish it. Your state may be different, this is true for California. Great idea. Wish I had thought of that. Haven't started the work on it yet. Wonder if I can get my jeweler friend to do my ID engraving before I start - that is before it's a gun. Should be legal. Quote Link to comment Share on other sites More sharing options...
liber Posted January 23, 2015 Report Share Posted January 23, 2015 I bought jigs to do both the 15 & the 10, 2 different jigs from 2 different manufacturers. The 15 jig came from the same place I got the 5, 15 lowers from & lined up perfect for milling, just wasn't sized correctly. The 10 I haven't milled yet & won't till I get the upper for it. Ray. Ray, not sure I understand that, but are you saying that the company makes a jig for their own lowers that doesn't isn't sized correctly? What do you mean wasn't sized correctly, do you mean in regard to how the pins fit into the jig? Great idea. Wish I had thought of that. Haven't started the work on it yet. Wonder if I can get my jeweler friend to do my ID engraving before I start - that is before it's a gun. Should be legal. Yes, if you have it engraved while it is an 80% (i.e., incomplete lower) anyone can do it, and you would have no problems with having your jewler friend engrave it, or having someone re-anodize (or finish it if it is raw) or cerakote it. I think other states are the same as CA in the sense that once it's an official firearm, it needs to have an FFL do the work if you need to leave it with them. You can have people do the work if you are in their presence while they do the work and do not leave it overnight. That is my understanding of the law. Since all states now have to go through FFLs for transfer of firearms, I would imagine this is true for all states, but some may somehow be exempted from the infringing laws which are in place. Quote Link to comment Share on other sites More sharing options...
98Z5V Posted January 24, 2015 Report Share Posted January 24, 2015 I'm not expert and have only milled a handful of lowers, but the AR-15 jigs are specific to forged or milled lowers, AFAIK, as they measure differently. They shouldn't measure differently - they all have to follow Colt's TDP. Quote Link to comment Share on other sites More sharing options...
slugger43 Posted January 24, 2015 Report Share Posted January 24, 2015 Yes, if you have it engraved while it is an 80% (i.e., incomplete lower) anyone can do it, and you would have no problems with having your jewler friend engrave it, or having someone re-anodize (or finish it if it is raw) or cerakote it. I think other states are the same as CA in the sense that once it's an official firearm, it needs to have an FFL do the work if you need to leave it with them. You can have people do the work if you are in their presence while they do the work and do not leave it overnight. That is my understanding of the law. Since all states now have to go through FFLs for transfer of firearms, I would imagine this is true for all states, but some may somehow be exempted from the infringing laws which are in place. It's worse than that with the new law in Washington. Very confusing on the transfer of firearms. The new law apparently covers any transfer (some exceptions for family, I guess) and that causes all kinds of problems with loaning a buddy a hunting rifle, etc. I can remember when we could just drop off a rifle or pistol (and did) to a local guy who did engraving. No concern over FFL, cuz we knew the guy, he was a craftsman, handshake, work done, etc. Now it's a damn federal case. Quote Link to comment Share on other sites More sharing options...
slugger43 Posted January 24, 2015 Report Share Posted January 24, 2015 They shouldn't measure differently - they all have to follow Colt's TDP. Problem: The width of an AR-15 lower is not a controlled dimension. Forged lowers vary in width from vendor to vendor and from lot to lot. Billet lowers tend to be quite a bit wider than forgings and the width varies from design to design. Solution: Modulus Arms' jig uses the same lower receiver features that center an upper, resulting in a true universal fit. That's a quote from the Modulus Arms web site advertising their universal jig. I print this not as gospel, because I don't know enough to do that. I'm just quoting them as another source of information that might be helpful. Their point was apparently that the lowers are NOT the same, but it appears it's mostly width, not hole size or location. Quote Link to comment Share on other sites More sharing options...
slugger43 Posted January 24, 2015 Report Share Posted January 24, 2015 Guess if I wasn't such a dolt, I'd have given you all the link to the site. They obviously have a lot more info (and engineering knowledge) than I do. Here it is: http://www.modulusarms.com/features/ Quote Link to comment Share on other sites More sharing options...
suzukiray Posted January 24, 2015 Author Report Share Posted January 24, 2015 (edited) The only issue with the 15 jig I got was that the trigger group pocket width measurement on the jig was .010 undersized & the trigger assembly wouldn't slide in. Once I measured it & opened the jig up the .010 the trigger went in fine. Ray. Edited January 24, 2015 by suzukiray Quote Link to comment Share on other sites More sharing options...
liber Posted January 24, 2015 Report Share Posted January 24, 2015 The only issue with the 15 jig I got was that the trigger group pocket width measurement on the jig was .010 undersized & the trigger assembly wouldn't slide in. Once I measured it & opened the jig up the .010 the trigger went in fine. Ray. I'm picky and want to have things correct. For me, if the jigs/templates are followed closely will not leave a perfect pocket anyway, the sides will be off by at least some...even when I measure by hand the sides can come out .001"-.002" different, but I consider that to be close enough for rock and roll. Funny on the trigger though, as long as there was enough material left on the sides of the floor to support the ends of the trigger spring, the rest of the floor could be milled out and have no effect as the trigger is supported by the pin, and the hammer spring rides over the trigger pin. With a drop in aftermarket trigger group in a contained package, even that wouldn't matter and the entire floor could be milled out, AFAICT. Anyway, the trigger opening is certainly the one area on these lowers for me that seems to be the one area that often needs a little extra work. Sounds like you figured yours out and that's what counts most! <thumbsup> The jigs/templates are not an end all solution. I was only pointing that out. You also ended up measuring by hand, as I and many others have. Quote Link to comment Share on other sites More sharing options...
DNP Posted February 2, 2015 Report Share Posted February 2, 2015 (edited) Where the hell did Ray go? He already cancel his iternet to fund his new gun problem? Edited February 2, 2015 by DNP Quote Link to comment Share on other sites More sharing options...
98Z5V Posted February 3, 2015 Report Share Posted February 3, 2015 I need to give him a call about paint. I'll get that done, and tell him he needs to get his a$s back in here... <lmao> Quote Link to comment Share on other sites More sharing options...
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