All the reflex sights had way too much zoom for my liking so I tweaked them, my ESP also includes the iron sight adjustments (not sound changes) from the Iron Sights Fixes mod by happycompy. Only scopes are left unchanged.
The original mod uses a multiplier of between 2.0 and 3.0 which feels like using a high powered scope. I opted for 0.5 for the first tier of sights which includes Dot, Laser, Reflex 1 and 2. This translates to 1.5x zoom. Carry Handle, Holo 1 and 2 is set at 0.75. Combat Sight is 1.0 and Marksman Sight is 1.25. These adjustments make the base weapon and 2 unique versions behave more as you would expect, and like the Assault Rifle that should have been in the game from the start. Its a great weapon mod by the way, and I highly recommend it.
Original mod Lore Friendly 5.56 Collection (New Vegas LMG - R91 - Van Buren .223 Autoloader) at Fallout 4 Nexus - Mods and community (nexusmods.com)