O'yeah, worth noting is that Milsig make some great quality markers, my bro got a K-series and he has never, i'm serious, never had a ball break so far, he's shot about 3000 balls with it.
They're not for free, but i'm telling you mate, they are worth their penny in gold when it comes to military simulation markers.
Here's a review video from Modern Intel, they've been around a long time and done a ton of reviews on milsim markers.
Now this is the Paradigm from 2 years ago so in this video it wasn't First Strike compatible, not sure how the Paradigm 2 that also is coming out this year will be fitted.
Just check it out, these guys will give you all the info you want on the milsig company and quality of their markers. They are also in love with Tiberius and their First Strike.