Navgunner Posted October 9 Report Share Posted October 9 2 Quote Link to comment Share on other sites More sharing options...
MontanaRenegade86 Posted October 9 Report Share Posted October 9 Very cool!!! 1 Quote Link to comment Share on other sites More sharing options...
MPFiveO Posted October 10 Report Share Posted October 10 I don't know if it's really an issue, but if you do decide to make them would you consider looking at the extractor position and design to see if it can be improved? I've looked at a lot of guns over the years and right now I can't recall anything else that positions the extractor perpendicular to the ejector. I understand that it was probably easier to make it that way, but it sure does seem like it would put more stress on it. Not to mention that it's basically stamped out of sheet metal. A thicker machined version would have been far superior. If I remember correctly one of the other two M76 guys tried a different position on their bolt. I can't remember if it was SA Machine or BRP. Quote Link to comment Share on other sites More sharing options...
The Dude Posted October 11 Report Share Posted October 11 9 hours ago, MPFiveO said: I don't know if it's really an issue, but if you do decide to make them would you consider looking at the extractor position and design to see if it can be improved? I've looked at a lot of guns over the years and right now I can't recall anything else that positions the extractor perpendicular to the ejector. I understand that it was probably easier to make it that way, but it sure does seem like it would put more stress on it. Not to mention that it's basically stamped out of sheet metal. A thicker machined version would have been far superior. If I remember correctly one of the other two M76 guys tried a different position on their bolt. I can't remember if it was SA Machine or BRP. I don't think the extractor can be repositioned as it has to align with the notch in the trunion. But I second the idea that maybe it can be improved by making it more robust? Quote Link to comment Share on other sites More sharing options...
johnsonlmg41 Posted October 11 Report Share Posted October 11 IIRC it was SA. There are guys that have them, but I never ordered one, and it's obviously too late now. I'm sure someone will step up? And maybe post a pic? Not sure what is meant by "short" extractor? http://samachine.com/76 Bolt.htm Quote Link to comment Share on other sites More sharing options...
Navgunner Posted October 11 Author Report Share Posted October 11 Unfortunately this is not something that I’m going to tackle on this project. It’s been hard enough making a bolt that works with the variety of MK guns out there. Quote Link to comment Share on other sites More sharing options...
Navgunner Posted October 11 Author Report Share Posted October 11 1 hour ago, johnsonlmg41 said: Not sure what is meant by "short" extractor? http://samachine.com/76 Bolt.htm http://samachine.com/76 Ext.htm Quote Link to comment Share on other sites More sharing options...
trenchcollector Posted October 11 Report Share Posted October 11 (edited) Jim Burgess designed his bolt with the extractor at the 2 Oclock postion for his SW76 built on Stemple Tubes. Edited October 11 by trenchcollector more detail Quote Link to comment Share on other sites More sharing options...
Navgunner Posted October 12 Author Report Share Posted October 12 Initial estimates are $1,200 each but that could go up or down. The biggest factor as of today is the production quantity. If there’s a lot of participation then the price lower however, if I only make a dozen units then the price would of course be higher. I’ve sold over 100 FNC bolts but I don’t expect near that same response to these which is crazy to me because there’s a lot more S&W76 / MK760 SMGs out there and the S&W76 / MK760 failure rate is higher. Despite folklore, the FNC bolt is robust as long as shooters use factory loads. Quote Link to comment Share on other sites More sharing options...
woodenword Posted October 16 Report Share Posted October 16 I’d be in for one for my MK760. Quote Link to comment Share on other sites More sharing options...
Swaco Posted November 25 Report Share Posted November 25 My 76a1 pre mk760 uses the odd bolt and I got the blank extractor to work . I would be in for a new style bolt Quote Link to comment Share on other sites More sharing options...
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