tapcaf

Sorry for radio silence work went nuts based on the photos on the noted thread mine is short it's too big for a 15 but I think it's too small for my rifle. I'll pick up a new one from brownells. Got a new barrel and upper from midway most issues fixed.

UPDATE: Fixed the head space I just bought a new barrel head space is now in speck, new upper is in the mail , disassembled the old upper. I've been trying to find the dia speck of a 308 bolt catch to see if that is the problem why it wont lock back. Here is mine for reference.

I had that Idea in the back of my mind

7 5/8 3 1/4 4.7oz None taken. Didn't realize it was that common of an issue.

DPMS LR308 Upper: Palmetto state armory upper Gen1, brownells bcg, 16" unmarked 308win 41v50 barrel, basic gas block,mid length ss gas line, m lock quad rail, big honking muzzle break. ambi charger barrel nut forward assist dustcover (no name). Lower: Tennessee arms 308 hybrid lower, brownells lower parts kit, tubs 308 carbine flat spring, H2 carbine weight, FAB defense GL-SHOCK CP stock, 6 position buffer tube, extended mag release, push safety. (Looking at tig welding a bad on to the catch) spiffy bits: Fab Def Quick Release T-pod forward grip, 250 lumen tac light, 200 lumen IR light (lights up the forest with my goggles)

Sooooo I loaded a dummy round (case and bullet no primer/powder) now I got a little lazy I didn't take out the extractor or ejector of the bolt(i've always done that when headspaceing) I wanted to see what a good analog of a real round in the chamber would like...... OO HOLY poop I think this is a barrel issue?? I find it hard to believe a different bolt would fix that much of an issue just a little over an 1/8 of an inch. the second photo is the dummy in chamber I think it's sticking out too far and yes the barrel is marked 308 I got it out of an estate sale I was at, it was still pack in it factory box with packing grease and plastic dust covers.

First post here, I've been looking at a lot of the threads fixing issues with my build, I didn't realize how much of an issue sourcing parts was going to be due to not having a mil-spec variation or people trying to sell you parts for a 15 that doesn't fit a 308, (30% of my buddies pistol build was my gimmes) So far I'm down to two major issues one minor. 1. Headspace is at minimum possibly below what should a fully engaged lug look like. I can still a sliver of bolt lugs peeking out around the chamber lugs, I was able to get a 1/1000 feeler gauge nest to it about the same I was thinking about removing the coating off the bolt face to see if it will flush up. 2.The other issue is where the upper meets with the lower it is stopping my mag from entering the 10% of the way, if I pull the pin hinge the upper mag locks in then close pin back in works fine cycled manually it with five snap caps. AS soon as I drop the mag no binding gravity pulls it out, can't put in another tried different mags same thing. it's hitting the upper been thinking just sand off a few layers with my dremel (upper is a P.S.A mk1 lower is a Tennnessee arms hybrid lower) 3.Minor issue: bolt catch not locking this might be switched springs (I've taken the detent out once already that was stuck in the spring) saw it on another post on here, the bolt catch should be for a 10 I got it in a lower kit from brownells when I take it apart I'll put my calipers on it.

Found y'all by googling a problem I was having with my AR build.