Modification of a Standard Upper to .22

John Sabato · 02-11-2008, 05:08 PM

Jack/Ron

I think it may be possible to modify the extractors by reducing their size. By modifying the bottom half of their tips so that their purchase on the cartridge case will be on the top half of the circumference thereby better encouraging straight up ejection by a blow from the ejector at the bottom center. I will carefully modify the extractor tips by shaping them to be smaller (Red areas of the extractors will be removed). Sorry about the crude image, but I don't have any image software where I am, only Microsoft Paint. I hope this image gives you a good understanding of my intended modification.

When I get a piece of .22 barrel to experiment with, the testing will begin in earnest.

02-11-2008, 05:08 PM	#14
John Sabato Lifer Lifetime Forum Patron Join Date: Jun 2002 Location: The Capital of the Free World Posts: 10,156 Thanks: 3,003 Thanked 2,309 Times in 1,098 Posts	Jack/Ron I think it may be possible to modify the extractors by reducing their size. By modifying the bottom half of their tips so that their purchase on the cartridge case will be on the top half of the circumference thereby better encouraging straight up ejection by a blow from the ejector at the bottom center. I will carefully modify the extractor tips by shaping them to be smaller (Red areas of the extractors will be removed). Sorry about the crude image, but I don't have any image software where I am, only Microsoft Paint. I hope this image gives you a good understanding of my intended modification. When I get a piece of .22 barrel to experiment with, the testing will begin in earnest. __________________ regards, -John S "...We hold these truths to be self-evident that ALL men are created EQUAL *and are endowed by their Creator* with certain UNALIENABLE* rights, and among these are life, LIBERTY, and the pursuit of happiness..."*

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