Rick, This Diamondback EL variant is from a 2009 release date. I am not aware of any rolling upgrades to make a 'Gen 2' model. This is first and only generation of this model.

Rick, Gen 1 Sir. -- ((Specifications and Features)): - Diamondback DB10ELFDE Semi Auto Rifle DB10ELFDE - .308 Winchester (accepts 7.62 NATO) - 18" Stainless Steel Fluted Barrel - 1:10" Twist Rate - 20 Rounds - 15" KeyMod Hand Guard - Collapsible Stock - Mid-Length Gas System - Bolt Carrier Group is Melonite Coated AR10 style carrier with Multi-Cal Bolt - DPMS Style Barrel - A2 Flash Hider - DPMS LR-308/SR-25 Magazine Compatible (Magpul Included) - Overall Length Collapsed 35.75", Extended 39" - Overall Weight 7.5 lbs - Flat Dark Earth.

gen one and this model is no longer offered the current DB 10 models are here https://diamondbackfirearms.com/db10/