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Old January 18, 2013, 08:27 PM   #7
glockcompact
Senior Member
 
Join Date: December 22, 2010
Location: Colorado, United States of America
Posts: 396
There are many calibers that fit the ar-15 and there are many calibers that fit the ar-10. In those cases it's just a upper swap retaining the lower. But ar-10 calibers will not fit into an ar-15 and vise-versa.
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Look I like glocks. I've owned Sig's, HK's, 1911's, S&W, and other fine pistols but Glocks have been a favorite for me. Handguns without safeties are not dangerous. Idiots are dangerous.
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