junglewalk Posted January 31, 2017 Report Share Posted January 31, 2017 I have a M3A1, and want to convert the action to M3.....If I change the bolt to a M3 one, and change the lower to the one with the crank , will that be all I have to replace to make it work?...Is it possible to change it over, safely? Link to comment Share on other sites More sharing options...
Got Uzi Posted January 31, 2017 Report Share Posted January 31, 2017 All you would technically need to do is change out the lower. The bolts will work in either gun, as the only difference is the M3A1 has the cut out for your finger to go in. You will still have the large ejection port and safety for which there is no changing. Link to comment Share on other sites More sharing options...
junglewalk Posted January 31, 2017 Author Report Share Posted January 31, 2017 Thanks , Mr.Got/Uzi. Link to comment Share on other sites More sharing options...
Annihilator Posted January 31, 2017 Report Share Posted January 31, 2017 But the M3 crank will not work on an M3A1 bolt Link to comment Share on other sites More sharing options...
junglewalk Posted January 31, 2017 Author Report Share Posted January 31, 2017 Great photo, thanks:>...I have a M3 bolt coming.........tell me, I know the extractors are the same, is the retaining pin the same on both bolts?...........Thank you for your time....bh Link to comment Share on other sites More sharing options...
emmagee1917 Posted February 1, 2017 Report Share Posted February 1, 2017 The pin for the extractor is the same .Chris Link to comment Share on other sites More sharing options...
Got Uzi Posted February 2, 2017 Report Share Posted February 2, 2017 Why won't the M3A1 bolt work in an M3? The slot your showing is for the ejector not the cocking paw. That was one of the improvements they made on the M3A1 over the M3, to be able to remove the bolt assembly without having to drop the ejector/lower housing (in a sense-taking the whole gun apart) Link to comment Share on other sites More sharing options...
Annihilator Posted February 2, 2017 Report Share Posted February 2, 2017 The large slot on the M3 bolt is for the cocking paw for sure, the ejector sits right in the center and the M3 bolt has just a small slotted portion behind/through the feeding lips for the ejector Link to comment Share on other sites More sharing options...
junglewalk Posted February 3, 2017 Author Report Share Posted February 3, 2017 Thank you all you guys........I appreciate your help. Link to comment Share on other sites More sharing options...
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