benedw60 Posted April 18, 2018 Report Share Posted April 18, 2018 This guy sent me a picture of a M1a1 trigger frame with the left side rail cut out. Does anybody every seen this before and does it service a purpose Link to comment Share on other sites More sharing options...
Taliaferro Posted April 18, 2018 Report Share Posted April 18, 2018 Looks like someone was making a cut away TSMG to show how the parts interact when assembled. Link to comment Share on other sites More sharing options...
TD. Posted April 18, 2018 Report Share Posted April 18, 2018 I did not think about it being part of a cutaway. Excellent thought! I was wondering if it may have been part of an "old-spec" deac in the UK, Canada or Europe that someone had broken down for parts. Where is the part located? Link to comment Share on other sites More sharing options...
benedw60 Posted April 18, 2018 Author Report Share Posted April 18, 2018 Texas, I asked the guy if his parts kit came with a receiver piece that has a matching cutaway Link to comment Share on other sites More sharing options...
giantpanda4 Posted April 18, 2018 Report Share Posted April 18, 2018 I have a cut away - and I can get pics of that area on mine. But my (fading) memory says it was not cut there. There was a lot of cutting done below the wide section of the frame, where it shows the trigger group components moving with respect to each other. Also a link just recently posted here (didn't look to find it) to a video shows a cut away in it - may have some pics of that side of the frame too. Link to comment Share on other sites More sharing options...
Blanksguy Posted April 19, 2018 Report Share Posted April 19, 2018 Any possibility of someone working on a semi-only design..........or possibly someone's earlier attempt at a "Blank-Firing-Only" type design (?).......or even an attempt at a rifle-type design (?). Regards, RichardSUS Army, RET Link to comment Share on other sites More sharing options...
benedw60 Posted April 19, 2018 Author Report Share Posted April 19, 2018 I have no idea he said he bought the kit and thats how it came. Link to comment Share on other sites More sharing options...
Merry Ploughboy Posted April 19, 2018 Report Share Posted April 19, 2018 Experimental "sand cut"? With the open bolt design in a ready to fire state, dirt may get into the fire control group (FCG). The cut may have been an attempt to provide a path out for the dirt while still maintaining adequate structural integrity, and fit and function to the trigger frame. Link to comment Share on other sites More sharing options...
benedw60 Posted April 19, 2018 Author Report Share Posted April 19, 2018 So it came from savage that way? With the sand cut Link to comment Share on other sites More sharing options...
Mk VII Posted April 19, 2018 Report Share Posted April 19, 2018 I'd go for somebody's deactivation cut, designed to weaken the trigger frame. Any unexplained markings anywhere? Link to comment Share on other sites More sharing options...
Merry Ploughboy Posted April 19, 2018 Report Share Posted April 19, 2018 So it came from savage that way? With the sand cutIf it was an experimental trial, more like done at a field depot/armory similar to the hole soldered magazines. I don't recall where Thompson "sand cut" bolts were done. Link to comment Share on other sites More sharing options...
giantpanda4 Posted April 19, 2018 Report Share Posted April 19, 2018 I looked at my cut away. not the same. No pics, sorry. I wouldn't know why it was modified in that way. Link to comment Share on other sites More sharing options...
ThompsonCrazy Posted April 19, 2018 Report Share Posted April 19, 2018 That lower, or one identical, was part of a kit sold on gunbroker about 9 months ago. I remember looking at it and thinking it was part of a cut away. If I remember correctly the front nose section and barrel were cut away at the chamber. My .02 is that the lower was a one off modification by an individual. TC Link to comment Share on other sites More sharing options...
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