The Slimline Pro is one of the best Optics in MW2, but unlocking it isn’t the easiest. Fortunately, we’re here to tell you how to get it.

There are a number of excellent attachments in MW2, from Muzzles and Underbarrels to Stocks and Optics. One such attachment is the Slimline Pro.

However, getting your hands on the Slimline Pro Optic in MW2 will take some time and a lot of weapon leveling.

How to Unlock the Slimline Pro in MW2 Multiplayer

To unlock the Slimline Pro Optic in Modern Warfare 2, you must reach level 11 with the Lachmann Submachine Gun.

However, to get there, you’ll first need to unlock the Lachmann Sub itself by getting the Lachmann-762 Battle Rifle to level 13 and then the Lachmann-556 AR to level 12.

the Slimline Pro optic locked in MW2

Of course, while it does require you to go through three different guns, there is a fast way to level up guns in MW2 that will help you get there in no time.

Of course, to even equip a new Optic to your gun, you’ll need to first learn how to unlock custom loadouts in MW2.

What Is the Slimline Pro in MW2?

The Slimline Pro is an Optic in MW2 that can be equipped to the M4 assault rifle. It offers improved Precision Sight Picture but decreases Aim Down Sight Speed.

However, you shouldn’t worry too much about the decrease in ADS speed as most Optics affect this stat. If you want to see how it feels to use the Slimline Pro, you can always test it out in a private match.

the Slimline Pro optic equipped to a Dragonfly M4

Best Alternatives to the Slimline Pro in MW2 Multiplayer

If players are looking to use something very similar to the Slimline Pro Optic on their M4, then they should definitely try out the following weapons:

  • SZ Mini
    • It is practically the same optic and offers the same stat pros and cons.
  • Cronen Mini Pro
    • This is slightly different from the Slimline Pro as it comes with a red dot sight. However, in terms of size and stat changes, it is mostly the same. Players can unlock this Optic by leveling up the Expedite 12 to level 7.
  • Cronen Mini Red Dot
    • Much like the Cronen Mini Pro, the Cronen Mini Red Dot offers players an unobstructed view with the addition of a red dot sight. Players can unlock this Optic by leveling up the FSS Hurricane to level 3.
  • SZ Sigma-IV Optic
    • The SZ Sigma-IV Optic is a more enhanced version of the SZ Mini and comes with a red dot sight. Players can unlock this Optic by leveling up the X12 to level 4.
Former Staff Writer
Whether it's an indie platformer or a 100-hour JRPG, Tom loves talking about games. So much so, he made it his career. Since starting in 2020, he's covered a wide range of topics at sites including TheGamer and The Game Crater.