Ar 15 Jig

[rondog]

So, I'm curious - what does finishing the remaining 20% entail? And do these lowers not have s/n's? Is that the attraction? Or is it just the price?

[Irving]

So, I'm curious - what does finishing the remaining 20% entail? And do these lowers not have s/n's? Is that the attraction? Or is it just the price?

They don't have serial numbers, and that, and picking up a "project" is the attraction. It's definitely NOT the price. I paid $85 a pop for my 80% lowers. Took me 5+ hours over two sessions to complete one, and I still need to go back and finish it up. I don't want to scare people away, because I'm no machinist, and would do it again. It's just that I have an almost useable piece of bare aluminum for $85 plus hours of labor that still isn't complete, when I can pick up completed PSA lowers all day for $40.

[00tec]

So, I'm curious - what does finishing the remaining 20% entail? And do these lowers not have s/n's? Is that the attraction? Or is it just the price?

The 20% is the 2 FCG pin holes, safety hole, milling the FCG pocket, and milling the trigger slot.
Part of the appeal is not having to pay CBI for permission to have one, the other part is having a project.

I got billet lowers at ~$100 per, and I can machine one with the jig in 1-1.5hrs. Stripped lowers are cheaper generally when already complete, but once you tack on a transfer and CBI fee, the margins shrink.

[00tec]

Here's one I completed. Most were anodized, got this one for a future cerakote project.

[Combatmoose]

I've done one as well. As long as you take your time, and follow the instructions carefully, it works out just fine.

[Grant H.]

I've done, and helped a bunch of people do them.

I have the 80percentarms jig that was linked, and it works very well. It's gotten to the point that when I crank one out for one of my builds, I spend about 1:15 on it and I have a lower ready to go. I have another one that is 95% drilling to finish, and then a quick finish pass with an end mill. It came with my 9mm 80% lowers so I figured I would give it a shot.

Considering that I am spending $39/lower, and have already paid off my jig and tooling, the price is pretty nice, but I am also a fan of no paperwork.

I thoroughly enjoy the 80% stuff because it's more of a project than just bolting stuff together. I've got 80% 2011's, 1911's, P228's, AR-15's, AR-9's, AR-10's, 10/22's, etc... My wife just shakes her head and chuckles when UPS and Fedex show up...

[KevDen2005]

Thanks guys. I will plan on borrowing one this winter...for a winter project. I have too many summer tasks going on.

Here's an odd question and probably not the section for it, but is it possible to add a serial number to one of these and transfer it in the future? Like I mentioned before I really just want to try and do this myself as a project but may not necessarily want to keep every lower...especially if my first couple aren't pretty.

[Grant H.]

Thanks guys. I will plan on borrowing one this winter...for a winter project. I have too many summer tasks going on.

Here's an odd question and probably not the section for it, but is it possible to add a serial number to one of these and transfer it in the future? Like I mentioned before I really just want to try and do this myself as a project but may not necessarily want to keep every lower...especially if my first couple aren't pretty.

Legally, you cannot complete an 80% gun with the intention of selling it. IE you can't manufacture for sale and profit.

However, if you make one, and at some point in the future decide to sell it, you can serialize it and sell the firearm.

It's a grey area, but it is technically legal.

[KevDen2005]

Legally, you cannot complete an 80% gun with the intention of selling it. IE you can't manufacture for sale and profit.

However, if you make one, and at some point in the future decide to sell it, you can serialize it and sell the firearm.

It's a grey area, but it is technically legal.

Thanks for the info. I prefer to say within the confines of the law, even if I think it's dumb.