Preventing weapons from being knocked out

[Tranquillus]

So I keep losing unique and expensive weapons I give companions (especially Boone). After some digging around using Google, I've found out that it's most probably due to the weapon being knocked out of his hands. What I want to know is, is there a mod that prevents weapons from being knocked out of companions' hands (or a script that makes them pick it back up)? I don't mind if my own weapons are knocked out of my hands, but with companions I usually don't notice until a while later so I'd like to avoid this hassle altogether.

 

Thanks.