If a J frame only 5 in, 1 HKS loader with on me, another HKS in the always with soft bag.
If officer 1911' (.45ACP) one 7+1 round in, one 7 round on me, 7 round in soft bag.
If 9MM 12+1 in, 17 round on me, 17 round in soft bag.
If 696 5 in, 2-5 round HKS on me.
(EDIT) About a year and a half ago I was looking for a new work cell phone holster. At the Home Depot (tool department) among the tool belts/pouches etc., I found a heavily elasticized ballistic nylon example. It has a velcro flap, is sized for work site sized Nextel 2 ways, and has 2 more heavily elasticized smaller side pouches (compact flashlight sized I keep a Pentagon flashlight in one) the branding on the pouch is "Texas Hold Em". What I did determine, is that the sizing of the phone pouch fits 2-12 round M&P mag's, or 3 1911' single stacks and, it has an extremely durable (read that, it does NOT come off of a 1 3/4" double thick gun belt!) mounting clip with a hook to keep it under the bottom of the belt. Easy to take on/off but doesn't come off till intended. It doesn't attract the same attention as a dedicated mag holster.