My dept. just received Otis 9mm pistol kits for our needs. The kits are compact, comprehensive and quite impressive but I don't think I'd fork out $52 of my own pocket when you can achieve the same ends just as well by assembling a few choice tools oneself.
Good Old Uncle Sugar, Besides having the G.I. Issue 5.56 & 7.62 cleaning kits for my M4 & M14 my supply guy handed me two of the Otis kits in 2005. Year later we get another issue of the round otis kit, year after that again, only change was now the pouch was coyote instead of black. Gave mine away to some shooting pals and used a Bore Snake, and the Issue rods. IIRC the Square kit comes with a Gerber multi tool.