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Joined: Oct 2014
Posts: 1,336
Campfire Regular
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OP
Campfire Regular
Joined: Oct 2014
Posts: 1,336 |
Ok fellas. Buffer questions. I've built numerous ARs and always tuned them with an adjustable gas block and was good to go. I have a s&w m&p 10. I put a seekins adjustable gas block on it. So I could tune it to run with a can and not be over gassed. With the screw on the gas block backed all the way out. Allowing as much gas as possible. It still will not lock back on an empty mag. It will lock back when charging handle is pulled to rear. So it's not the mag. However it does eject to 3-4 o'clock. So I'm thinking a lighter buffer but, the factory buffer from s&w is a carbine buffer (2.95 oz) I'm afraid if I go much lighter it will beat its self to death. Should I try a lighter buffer or spring? Or is there another option.
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Joined: May 2009
Posts: 4,597
Campfire Tracker
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Campfire Tracker
Joined: May 2009
Posts: 4,597 |
Check your alignment of the gas block over the barrel port, you may need to slide it fore/aft or roll it.
IIRC, when I swapped my factory SW block out, the new block sat a bit further forward than the factory block did.
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Joined: Nov 2006
Posts: 10,163
Campfire Outfitter
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Campfire Outfitter
Joined: Nov 2006
Posts: 10,163 |
I had a Noveske barrel with intermediate gas once that was out running the mag catch. I had to add weight to slow it down. Maybe not what you're experiencing but I've yet to see a carbine buffer work in a 308
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Joined: May 2007
Posts: 14,653
Campfire Outfitter
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Campfire Outfitter
Joined: May 2007
Posts: 14,653 |
Was the barrel dimpled for the new gas block?
your flippant remarks which you so adeptly sling
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Joined: Oct 2014
Posts: 4,755
Campfire Tracker
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Campfire Tracker
Joined: Oct 2014
Posts: 4,755 |
Check your alignment of the gas block over the barrel port, you may need to slide it fore/aft or roll it.
This, it sounds like you didn't get the gas block aligned. With the screw backed out (not removed) from that Seekins block, it functions the same as any other gas block. It won't restrict the gas any more than your original gas block did. If you have function problems after installing it but not before, then most likely it's an installation issue.
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