Alright, let’s talk about this “Harbinger D20” thing I messed around with in Call of Duty. I saw some folks online talking about it being a good attachment, so I figured, why not give it a shot? To be honest, I’m not a pro or anything, just a casual player who likes to try different stuff.
Getting Started
First off, I had to actually unlock this Harbinger D20. If I remember correctly, it’s a muzzle attachment. From what I read, it helps with recoil, making the gun more stable when you’re firing away. Sounded good to me, because who likes a gun that jumps all over the place?

The Grind
Now, getting it wasn’t just a walk in the park. I had to level up a gun called the STB 556 to level 18. I don’t use this gun all that much, so it took a bit of grinding. I jumped into a few matches, focused on using the STB 556, and eventually, after a few hours, I hit level 18. It wasn’t too bad, just a bit time-consuming.
Putting it to the Test
Once I unlocked the Harbinger D20, I slapped it onto a few different assault rifles. I remember trying it out on the M13B, since someone mentioned it made the recoil super manageable. And yeah, they weren’t kidding. That thing was like a laser beam. I was hitting shots I normally wouldn’t, and it felt pretty awesome.
I also tried it on the M16, which is a burst-fire gun. It’s supposed to be a heavy attachment. Again the Harbinger made a big difference. The bursts were tighter, and I felt way more in control when firing. It definitely made the M16 a lot more fun to use. It was a bit better to control the burst fire.
Final Thoughts
- Unlocking: Had to level up the STB 556 to 18. Took a while, but wasn’t terrible.
- Using it: Made a noticeable difference on the M13B and M16. Recoil was way better.
- Overall: Definitely worth trying out. It’s a solid attachment that can improve your gameplay.
So, yeah, that’s my little adventure with the Harbinger D20. It’s a cool attachment that actually makes a difference. If you’re looking to improve your aim and control, especially with assault rifles, I’d say give it a shot. It might just surprise you. It’s not a magic fix, but it definitely helps. Just be prepared to put in a little time to unlock it. Hope this helps someone out there!