Gen CGT (also known as Improved Definition) night vision riflescopes are Gen 2+ night vision scopes with resolution of 45-54 lp/mm. These night vision scopes are mid level Gen 2 and as such are very capable devices. This generation offers shooting range of up to 200 yards depending on ambient light and magnification. Some of the most popular night vision scope models are Armasight Vulcan, Spear, Nemesis, ATN Ares and Mars. Typical magnifications for night vision riflescopes in Gen CGT are 2-6x.