Wish I could remember! I think they used the same 3 screws?
Visually the only difference I can see is the "peep hole" in the handguard where you can see if the barrel is seated on it's shoulder completely. All else looks the same from the pictures I've been browsing over.
Visually the only difference I can see is the "peep hole" in the handguard where you can see if the barrel is seated on it's shoulder completely. All else looks the same from the pictures I've been browsing over.