The Collated Drywall Screw Gun Attachment connects to the DCF620 Screw Gun to enable tool usage with flexible-strip collated drywall screws. The attachment features tool-free screw length, fine-depth adjustments, and tool-free spring removal for easy cleaning. The attachment's 360° rotation...
Not sure if you mean yellow feed and black feed rather than handles? But if that’s the case yellow one is first generation and black is second generation.
I’ve got the first generation which had problems sticking (replaced via warranty)
Still sticks every so often more with longer screws. You have to keep it clean.
Go with the second generation it’ll be better they always make improvements.