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I'm looking to start my first 80% build. I bought a couple 80% lowers about a year and a half ago, with the intention of someday completing them. Well, the time has come that I'm looking to get the project going. I bought the lowers not knowing half of what I know now about AR's (which still isn't a whole hell of a lot, but it's enough that I have a grasp on things). Anyway, I pulled the lowers out of storage and inspected them, and discovered an obstacle (not sure how big yet, which is why I'm here). They're more like 75% lowers. Compared to a friend's 80% lower he got from Tactical Machining, mine is missing a few things.
1. No hole for the pivot pin detent/spring.
2. No hole for the bolt catch plunger/spring.
3. No hole for the grip screw.
How big of a deal is this, and what are my options? I don't see the pivot pin and bolt catch holes being something too difficult for me to tackle, if I knew the proper schematics, but the threaded hole for the grip screw sounds like it could definitely be challenging.
Given that there are 80% lowers on the market that have these features already prepared, are there any shops/smiths that would take care of these issues to bring them UP to 80%? If nothing else, at least the grip screw hole? And if not, does anybody know where I can find a guide to do this part myself? I'm hoping the answer isn't "you're screwed", because although this is money I spent a long time ago, I'd hate for it to be money down the drain in the end. Thank you guys.
1. No hole for the pivot pin detent/spring.
2. No hole for the bolt catch plunger/spring.
3. No hole for the grip screw.
How big of a deal is this, and what are my options? I don't see the pivot pin and bolt catch holes being something too difficult for me to tackle, if I knew the proper schematics, but the threaded hole for the grip screw sounds like it could definitely be challenging.
Given that there are 80% lowers on the market that have these features already prepared, are there any shops/smiths that would take care of these issues to bring them UP to 80%? If nothing else, at least the grip screw hole? And if not, does anybody know where I can find a guide to do this part myself? I'm hoping the answer isn't "you're screwed", because although this is money I spent a long time ago, I'd hate for it to be money down the drain in the end. Thank you guys.
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