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AR15.COM
4/21/2016 3:40:33 AM EDT
I just got mine this week. Took maybe an hour to finish it.

The only problem is I messed up the locking block due to bad instruction, they're sending me another one.

Which brings up another point: The rear slide rail is plastic and I'm not so optimistic about it holding up under repeated fire, and I got an extra locking block that has a rail on it.

I was thinking to mill the back slide rail off, then mill additional pocket alongside the trigger spring housing cavity, and cut the old locking block down and epoxy that thing into the frame to create a metal rail... (obviously the locking block would need to be cut down, milled thinner in order to fit)

Do you think I should do that, or "don't fix what ain't broken"?
4/21/2016 8:14:20 AM EDT
[#1]
Dont
4/21/2016 8:31:12 AM EDT
[#2]
Sounds rather... complicated. What is the point of doing all of that, as opposed to just buying a gun from Glock? What benefit is derived?

(Not trying to be snarky, I'm just wondering why you would go through all of that trouble.)

4/21/2016 9:48:51 AM EDT
[#3]
tag because I want to make one
4/21/2016 11:12:44 AM EDT
[#4]
Regarding the cost/benefit of making a firearm out of 80% lowers, it's been beaten to death. Yes it costs more, yes you need to invest in tooling and machines. But as many have said some people prefer not ending up on some government list for having firearms, and others like building stuff. It's a lot like buying seeds or vegetable plants from Home Depot and raising a garden. It's far cheaper to buy factory farmed vegetable in a supermarket (the seed/plants alone costs as much as 5 times the price of the vegetable) but people do it because they like gardening.

I was hoping to address the polymer slide rail in the back by reinforcing it with metal but I guess I'll just wait and see. If it wears through prematurely then I'll make a new rail out of metal...
4/21/2016 1:13:30 PM EDT
[#5]
How did the locking block get messed up.
4/21/2016 3:07:05 PM EDT
[#6]
Somebody has a website that shows how to put in steel rails.

I just read it a few days ago, but don't remember were. It involves cutting a very thin slot and epoxying rails in the plastic.
4/21/2016 5:34:43 PM EDT
[#7]
I'd run it with the polymer rails for awhile and see how they hold up. You can always modify it later if they look like they won't withstand the test of time. Post pics.
4/26/2016 12:28:50 AM EDT
[#8]
OST
4/28/2016 11:42:31 PM EDT
[#9]
The Springfield DD has almost the same exact design where the front rails are part of the locking block and the rear is polymer. He is my XD is sold a few months back.