Second the comment about Walmart racks. I found that the space between my shelf and top of the save was a tad small and several of the racks shown/mentioned above didn't have enough room. The rack from Walmart was just an adjustable length shelf and pistol barrels will fit between the wires and are held by spring tension and the trigger guard inside. It will also hold revolvers though a heavy bull-barrel may not fit. There is enough room under the shelf for a few magazines and other accessories or boxes of ammo. Mine holds 12 assorted and cost about $13 IIRC.
