Quad gun barrel made to go with https://www.thingiverse.com/thing:3651765 by Corvus_Obscurus
Made to print with a resin printer, not sure how it would print in FDM.
Copyright infringement is not intended. Parts are created freehand in 3d modelling software, no copyrighted product had been scanned or copied in any way. This model is for personal use as a proxy and should never be sold.