This is a NOS Glock OEM Gen 1 and/or Gen 2, old "pre upgrade" Black Slide Lock Spring, made for a Gen 1 & 2 G19 and the Gen 2 G23 pistols. Upon inspecting this slide lock spring, It appears be NOS (New Old Stock). It doesn't show any wear what so ever. This is only the 2nd example of these that I have seen. They are super hard to come by.
I do not have any factory packaging or papers for this item. It will come shipped in a zip lock style plastic bag.
Please see the high resolution photos for condition.
I will combine shipping on multiple purchases.
Thank you for looking.