View attachment 7923968
2007 E-Series bolt & follower. The location where "Rem-Tuff" proprietary powder coating has been applied on top of the Sandstrom dry film lubricant is visible.
I can not find any contractor documentation that superceded the original Sandstrom E-859-B29. A derivation of color change may not have needed approval?
So the entire bolt is Sandstorm coated, then Rem-tuff is applied to the bolt handle? Interesting way to do it.