Unusual RI marked sear

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   I was going through my albums today and found these pics of an RI marked sear that I have. What's unusual is the hole is *round*, not oblong like it should be, so it wouldn't function properly in a standard M1 trigger housing setup. The sear in question is on the RIGHT (just for comparison I have a normal sear on the LEFT). It appears original and looks like it's seen some use. I don't think it has been welded and re-drilled or anything. At one time I posted it over on CMP forums but no one seemed to know the official story so here goes.

http://imgur.com/a/4FniE

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GotSnlB28 Members Profile Send Private Message Find Members Posts Add to Buddy List Hard Corps Joined: Jan 01 2016 Location: WI Status: Offline Points: 896	Post Options Post Reply Quote GotSnlB28 Report Post Thanks(0) Quote Reply Topic: Unusual RI marked sear Posted: Mar 12 2017 at 5:45pm
	I was going through my albums today and found these pics of an RI marked sear that I have. What's unusual is the hole is round, not oblong like it should be, so it wouldn't function properly in a standard M1 trigger housing setup. The sear in question is on the RIGHT (just for comparison I have a normal sear on the LEFT). It appears original and looks like it's seen some use. I don't think it has been welded and re-drilled or anything. At one time I posted it over on CMP forums but no one seemed to know the official story so here goes. http://imgur.com/a/4FniE

blackfish Members Profile Send Private Message Find Members Posts Add to Buddy List On Point Joined: Mar 30 2016 Location: 999-0 Status: Offline Points: 289	Post Options Post Reply Quote blackfish Report Post Thanks(0) Quote Reply Posted: Mar 13 2017 at 9:32am
	Using hammer follow-through to fire while holding the trigger down, may be somebubba's idea for a simple full auto variant? Doubt it's "USGI" (machining around the hole looks reground)