scott fisher Posted January 28, 2013 Report Share Posted January 28, 2013 I have a DPMS LR 308 with a 18" bull barrel. I was at the range today and noticed what looked like some sort of gun part lying on the bench. Long story short. It was my ejector from the bolt. I pulled the bolt assembly out and noticed the roll pin that holds the ejector in the bolt was half way out and the ejector came out. Then the ejector spring fell out when I was looking at the bolt to see what was going on. I was able to remove the roll pin by hand. WTF? I only have like twenty rounds threw the rifle so far. Got back home and I was able to push the roll pin threw the bolt with very little effort. Looked on line and the pictures for the ejector make me think I mite have a ar 15 ejector in the bolt. The ejector I have doesnt look like the one on the midwayusa web site, it looks like the ar 15 ejector. I expanded the roll pin a bit and installed it. Just so you know I'm a rookie with dpms stuff. Oh ya and this is my first semi auto rifle. Have lots hunting rifles so semi auto is new ground for me. I have installed a few triggers in my hunting rifles before so Ive done a little bit of gun smithing but not much. Anybody come across this before. Going to call DPMS in the morning.Scotty Quote Link to comment Share on other sites More sharing options...
98Z5V Posted January 28, 2013 Report Share Posted January 28, 2013 I'm having a hard time getting this one into my head, brother - welcome to the board, by the way. <thumbsup>If the bolt is in the bolt carrier, then both the ejector roll pin and the extractor pin are inside the carrier - thus, unable to go one way or the other, and come out. Can you post some pics of your bolt face, with the ejector back in the bolt now? That would help, greatly. Quote Link to comment Share on other sites More sharing options...
unforgiven Posted January 28, 2013 Report Share Posted January 28, 2013 Welcome from Indiana brother Scotty,pics always help. Quote Link to comment Share on other sites More sharing options...
scott fisher Posted January 28, 2013 Author Report Share Posted January 28, 2013 Tried to post pis, didnt work will try tomorrow. Quote Link to comment Share on other sites More sharing options...
scott fisher Posted January 29, 2013 Author Report Share Posted January 29, 2013 Picture of ejector. Quote Link to comment Share on other sites More sharing options...
scott fisher Posted January 29, 2013 Author Report Share Posted January 29, 2013 The hole where the roll pin came out. Quote Link to comment Share on other sites More sharing options...
scott fisher Posted January 29, 2013 Author Report Share Posted January 29, 2013 Picture of bolt extended. Quote Link to comment Share on other sites More sharing options...
scott fisher Posted January 29, 2013 Author Report Share Posted January 29, 2013 So only the extractor pin is covered by the carrier when bolt is rotated into carrier. The hole for the roll pin thats holds the extractor is not. Should have taken a picture of ejector when I had it out but I didnt. Callled dpms today and they are going to send me a new ejector and roll pin. I dont know maby the roll pin wasnt installed all the way. I pretty sure it has the wrong ejector for it. The guy at dpms said their picture on their web site is correct and my ejector doesnt look like that one. Quote Link to comment Share on other sites More sharing options...
98Z5V Posted January 29, 2013 Report Share Posted January 29, 2013 That's not an AR-15 ejector, in your pics... Quote Link to comment Share on other sites More sharing options...
scott fisher Posted January 29, 2013 Author Report Share Posted January 29, 2013 So if that is the right ejector then the only issue I have to worry about now is why the roll pin came out. <dontknow> Quote Link to comment Share on other sites More sharing options...
98Z5V Posted January 30, 2013 Report Share Posted January 30, 2013 That rollpin should need force applied to it to get it in place - which would keep it in place. Without having the whole bolt in my hands, the first thing I'd suspect is that original rollpin.Was the ejector broken? Quote Link to comment Share on other sites More sharing options...
scott fisher Posted January 30, 2013 Author Report Share Posted January 30, 2013 No the ejector wasnt broken. Its the roll pin that came with rifle. So what I did was I use a exacto knife and expanded the roll pin and re-installed it. It had some "force" after that. Brfore it would just push right threw with very little force. So either the roll pin is or was to small or not the right one. Or the hole in the bolt is not machined right. Maby it wasnt installed all the way in. When the new roll pin and ejector comes I'll install them and run and see what happens. Well at least Im geting to know all the names of the rifle parts. Quote Link to comment Share on other sites More sharing options...
BigP623 Posted January 30, 2013 Report Share Posted January 30, 2013 Had the same problem with that pin on my gun. Luckily before the first fire I took the whole gun down to oil it up good and learn the parts and figured that it wasnt right and did the same thing you did. I expanded the roll pin slightly and put it back in and havent had any problems so far....u live n u learn Quote Link to comment Share on other sites More sharing options...
98Z5V Posted January 31, 2013 Report Share Posted January 31, 2013 Once is an "assembly problem." Two different reports of it makes it "a pattern."Others should definitely be on the lookout for this issue - because, with two, it's now an issue. That poop needs to be fixed at the factory, with a quickness.There's no such thing as "coincidence." Some assembler needs to get their head out of their ass.Or, start looking for a cheaper apartment. Quote Link to comment Share on other sites More sharing options...
scott fisher Posted January 31, 2013 Author Report Share Posted January 31, 2013 So maby it was just the pin not installed right. Quote Link to comment Share on other sites More sharing options...
98Z5V Posted January 31, 2013 Report Share Posted January 31, 2013 Do you have the diameter of that pin, before you expanded it? That's a tell-all, right there. Quote Link to comment Share on other sites More sharing options...
unforgiven Posted January 31, 2013 Report Share Posted January 31, 2013 Or under sized pin??? <dontknow> Quote Link to comment Share on other sites More sharing options...
scott fisher Posted February 1, 2013 Author Report Share Posted February 1, 2013 No didnt measure pin. Quote Link to comment Share on other sites More sharing options...
texas30cal Posted February 1, 2013 Report Share Posted February 1, 2013 Oversize hole due to some button pusher not checking their tooling and running dull or chipped drills? Quote Link to comment Share on other sites More sharing options...
ltgman Posted February 3, 2013 Report Share Posted February 3, 2013 i'm a newbie here and this is my first post. I was reading through and couldn't believe that 2 others had the same problem I had with my ejector. I was at the range a couple of weeks ago and after firing about 8 round from this brand new lr-308, the shells stopped ejecting. I pulled and lock the charging handle to the rear, dropped the magazine, and "plink" the ejector rolled on to the ground. when I removed the bolt, the roll pin was about halfway out as well. I got it back home and put it back together. Hopefully this won't happen again. This is the second problem i've had with this rifle. The first problem was a broken firing pin retaining pin......but that is another story for another time. I will say that when I called DPMS they were more than happy to make everything right. Quote Link to comment Share on other sites More sharing options...
unforgiven Posted February 3, 2013 Report Share Posted February 3, 2013 Welcome from Indiana brother ltgman,seems like a pattern developing. <munch> Quote Link to comment Share on other sites More sharing options...
Rsquared Posted February 3, 2013 Report Share Posted February 3, 2013 Welcome to the funhouse ltgman. The beauty of this platform (or any other mechanical device), is that it can always be fixed to run right.....with patience. And a little help from the knowledge that all of the fella's (combined) on this board have. Quote Link to comment Share on other sites More sharing options...
scott fisher Posted February 4, 2013 Author Report Share Posted February 4, 2013 Well at least I'm not the only one. So I spent some range time at my friends ranch and shot about 30 rounds threw my rifle. Every five rounds or so I checked the bolt and towards the end of the day I started to notice the pin stating to walk out of hole. I'm going to inspect tomorrow and will update further. Quote Link to comment Share on other sites More sharing options...
98Z5V Posted February 4, 2013 Report Share Posted February 4, 2013 It's the same sized pin in the 308s and the AR-15s, so it should have a length of 0.437" and a diameter of 0.062". If it IS that size, then the hole is drilled too large. Time to look for the next size up on roll pins. Quote Link to comment Share on other sites More sharing options...
texas30cal Posted February 5, 2013 Report Share Posted February 5, 2013 Don't forget that the roll pin, if it is a 1/16", should measure oversize. You always drill the hole for a roll pin on-size adn the pin is oversize so it is under spring tension when installed. I don't have one to measure handy but I would guess .065"-.070" dia. at least. Quote Link to comment Share on other sites More sharing options...
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