@thecabbagedetective i’m going to say it again but the evolution of ur skills is stuning ! wow respect !!!!
the gun model is good but the textures look somehow flat ( maybe the lighting.? ) u may use the pointiness to highlight the edges.? and give the grip a darker color .?
for the shrinkwrap issue..u may try to delete the thickness , or if u have time do a fast retopo… choosing a vertex group may not work here..keep the good work