I have recently introduced my two kids to pistol shooting. I bought the Maxpedition Mongo so I could bring two pistols and enough safety gear for all three of us to the range. This bag is the perfect size. I can fit two pistols (full size double stacked Sig and a Browning Buckmaster) in the CCW compartment using the generic holster add ons, Two sets of ear muffs in the water bottle compartment, Several hundred rounds of ammo in the main bag as well as multiple magazines, a cleaning kit, first-aid kit, staple gun, additional foam ear plugs, eye protection, pens, markers, etc. This bag carries it all without even breaking a sweat. Could easily carry a third pistol in the main bag and anything else you would need for a day at the range.

The bag is very well constructed, very ergonomic, and is extremely customizable with the appropriate add-ons. I expect this will be my go to bag for many many years.