The original Colt Model 601 did not have coated sling swivels and the Model 602 did not have them either. Coated sling swivels began showing up on the D type stocks which were used on the Model 603s (XM16E1 and pre-1971 M16A1s), Model 604s, Model 605s, and Model 651/652s.
"A Bad Day At The Range Is Better Than A Great Day Working"
USMC Force Recon 1978-1984
US Air Force Res. 1995-2004 (Air Transportation)
M16/AR15 shooter since 1978, gun collector and AR builder since 2004
Oath Keeper member
III% United Patriots member
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