80% receiver questions
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Old 02-09-2010, 09:28 PM   #1
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Default 80% receiver questions

Does anyone have any experience with an 80% receiver? Looking for a new project soon and would appreciate any info.

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Old 02-10-2010, 06:11 AM   #2
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Do you have the receiver yet, or know which features need to be completed?
What kind of tooling do you have to work with?

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Old 02-10-2010, 03:21 PM   #3
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I don't have one. I wanted to know more about it and what it takes to complete before I ponied up and bought one.

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Old 02-10-2010, 04:53 PM   #4
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Machining skill is required, and you'd better be good, or you have a paperweight.

AK flats take less skill, but require heat treating. And a bending jag.

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Old 02-10-2010, 07:05 PM   #5
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Not so sure I want that expensive of a possible paperweight.

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Old 02-11-2010, 03:47 AM   #6
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Well if you think the paperweight would be expensive, you certainly won't like the price of the tools to do it.

http://www.cncguns.com/tooling.html

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Old 02-16-2010, 01:32 AM   #7
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Yeah you better be a good machinist (and I'm not) and have access to a shop with tooling. Not to mention a good mill

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Old 02-16-2010, 02:12 AM   #8
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why not just buy a 100% lower?...@ 55.00bucks @ RGUNS...yeck my friend would charge me atleast that to complete a 80% lower..:/millling machines are not cheap...even for the cheap ones..and it does help to know how to use them and read blue prints and have the right mics...i have put a few ak kits together and benning is right about the heat treating...but its not to hard...really all that needs heat treated on a ak flat is the fire control group holes...also you dont need a bending jig...all you have to do is scribe along the bottom of the flat with a good straight edge & cutting tool..i do this by getting my measurements right on the flat..drawing lines down the flat(masking tape)works good...then remeasure..then take my die grinder w/ cutting wheel...and going very slow...stay with the line...all you need is a good half way deep lines across the flat...when done...just fold...then weld...of course weld your rails in first

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Old 02-16-2010, 12:23 PM   #9
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I found a website that showed how to complete an 80% lower with nothing more then a drill press. All the hard machining has already been done. Your press would need a bed of some sort to hold it and you'd need a way to set it up. We're talking movements of .001" or less.

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Old 02-16-2010, 02:52 PM   #10
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Sounds like I would be biting off more than I could chew.

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