How do Sicarian Infiltrators reload?

I noticed that the Flechette blasters and stub carbines both have magazines but the infiltrators only have one hand, with the other having their melee weapon grafted onto it.

I can see the mechadendrite of the princeps helping it reload but what about the other ones? Does the princeps just run around reloading for his entire squad?

I noticed that the Flechette blasters and stub carbines both have magazines but the infiltrators only have one hand, with the other having their melee weapon grafted onto it.

I can see the mechadendrite of the princeps helping it reload but what about the other ones? Does the princeps just run around reloading for his entire squad?