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Impact 737 in Origin Stock?

Dremel should fix interference at the bolt handle, ejection port, and bolt stop if there is any. I had to open up the ejection port, clearance the bolt handle and bolt stop cutouts and lengthen the ejection port when dropping my Defiance into a stock inlet for Impact. Easy work.
 
what stock? it may or may not require some minor dremel/sanding work

Impact: straight handle and hanger
Origin: swept handle

ejection port and bolt release differences as well