EasyEJL Posted March 8, 2014 Report Posted March 8, 2014 Sometimes when customers return things to Shadow Ops, I get to keep them, free. Among the stuff lately has been a black nitride BCG. Its issue reported was failure to eject. I played with it, and the extractor is really really stiff, virtually impossible to make move at all with a finger. in a upper with no lower attached, an empty shell would get picked up by the extractor, but never releasedso ideas? do I try to replace the springs / rubber piece? or is it more likely something else? replace the entire extractor?
washguy Posted March 8, 2014 Report Posted March 8, 2014 If it were mine I would just replace everything...extractor and springs :) Wash
Dane Armory Posted March 8, 2014 Report Posted March 8, 2014 Bet money ;the tolarances of the coating are interfearing. (is too thick) I would replace the extractor with a stock type part and put new stock ejector and spring in it. Plain Jane DPMS parts, used would be better because it would be a known fact that it works.
EasyEJL Posted March 8, 2014 Author Report Posted March 8, 2014 who has cheap shipping on those? I hate ordering that stuff and paying twice as much for shipping as the parts
Dane Armory Posted March 8, 2014 Report Posted March 8, 2014 (edited) Can't you just go to your LGS and ask to look at their parts bin ? Both my LGS have then with small AR parts. Like. This ! Edited March 8, 2014 by Dane Armory
shibiwan Posted March 8, 2014 Report Posted March 8, 2014 who has cheap shipping on those? I hate ordering that stuff and paying twice as much for shipping as the parts PSA is having free shipping this weekend if you pile up $50 in purchases.
EasyEJL Posted March 8, 2014 Author Report Posted March 8, 2014 Can't you just go to your LGS and ask to look at their parts bin ?Both my LGS have then with small AR parts.Like. This !nearest decent store is a half hour drive :P
Robocop1051 Posted March 8, 2014 Report Posted March 8, 2014 Easy, PM me your address. I have at least 100 of those springs and rubber pieces. Nitride doesn't add mass to metal. It's a treatment, similar to stainless. If you want to, give the edges of the extractor a rub down with some light sanding or steel wool. Not enough to remove material, but just enough to take off any tight edges.
Robocop1051 Posted March 8, 2014 Report Posted March 8, 2014 My bet is the guy got some junk behind the extractor spring and seized it up. I had a rifle that popped a few primers. The little brass tabs got stuck inside the bolt and shredded that spring.
Dane Armory Posted March 8, 2014 Report Posted March 8, 2014 Rob , you're thinking the same as me. But I didn't want to suggest using sandpaper or emery cloth and a file.
Robocop1051 Posted March 8, 2014 Report Posted March 8, 2014 (edited) Rob , you're thinking the same as me. But I didn't want to suggest using sandpaper or emery cloth and a file. He won't learn the intricacies until he gets intimate with it. If he breaks it, no big deal, he was planning on getting another one anyways. Edited March 8, 2014 by Robocop1051
EasyEJL Posted March 8, 2014 Author Report Posted March 8, 2014 yeah, with it being free in the first place, if I end up having to spend the $15 for a new extractor, its not a big deal. I think I have some emory cloth out in the garage, that would probably work decently. except...with the pin out, there doesn't seem to be any binding anywhere when I push it down. even with a slightly smaller diameter pin punch pushed in, its still hard to budge the extractor, unlike on the other BCGs I've handled. Could the spring be too strong?
EasyEJL Posted March 8, 2014 Author Report Posted March 8, 2014 a rubber o-ring around the spring, removing it feels no different. I don't think there are any d rings in that area, I have it all apart and didn't see one. What I did notice though is that the spring almost doesn't compress at all, with or without the o-ring, even out of the carrier...
EasyEJL Posted March 8, 2014 Author Report Posted March 8, 2014 well, after compressing the spring with a set of lockjaws, and removing the o-ring, it seems to at least with empty shells eject them by pulling the charging handle back. I'll go to the range with it tomorrow and see
survivalshop Posted March 10, 2014 Report Posted March 10, 2014 You said you used a smaller pin , did you try to manipulate the extractor in the bolt body with out a spring & o-ring ? That would tell you if it was a fitment problem with the extractor in the bolt or the spring set up .
Magwa Posted March 10, 2014 Report Posted March 10, 2014 Get a new spring and O ring try it without the O ring first I will bet it works fine....
EasyEJL Posted March 10, 2014 Author Report Posted March 10, 2014 You said you used a smaller pin , did you try to manipulate the extractor in the bolt body with out a spring & o-ring ? That would tell you if it was a fitment problem with the extractor in the bolt or the spring set up .it was loose and moved fine without the spring. Seems to be in working order now, but I still need to make it to the range. Daylight savings time hurt me yesterday :)
survivalshop Posted March 10, 2014 Report Posted March 10, 2014 I have extra springs if you need one , with or with out the rubber finger inside. If you had to compress that spring with pliers , I wouldn't trust it .
EasyEJL Posted March 10, 2014 Author Report Posted March 10, 2014 Yeah, that was a temporary fix just to see if it would work, Rob is mailing me a set already, thanks though!
98Z5V Posted March 11, 2014 Report Posted March 11, 2014 I think it's the ejector spring - or the ejector itself is tight in the hole in the bolt. I'm betting it is not the extractor.
survivalshop Posted March 11, 2014 Report Posted March 11, 2014 Could be a combination of both , one too stiff & not releasing the spent case & the other not pushing the spent case from the bolt face .
EasyEJL Posted March 11, 2014 Author Report Posted March 11, 2014 well, the ejector seems to push the bullet out, the shell was sticking to the bolt but pointed to somewhere around 2 o'clock looking down from the top
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