The North Mountain IDPA Compliant Speed Loader Holder is made specifically for the competitive IDPA shooter. Light weight at 2.9 oz, it firmly holds your competition speed loader. It is fitted with Tek Lok's (TM) to mount to your range belt. It is available in three sizes for Comp III and similar sized speed loaders. If you use K frame Comp III speed loaders, order the "K" model. If you use the "L" frame Comp III speed loaders, order the "L" model. If you use HK or SL Variant speed loaders for your N frame size revolver, order the "N" model.