My reno is fabricated with basketweave leather formed around kydex? .If I remember correctly it would hold both the L frame smiths and K frame PPC custom guns with bull and slab barrels. The front opening was to allow clearance for the Bomar rib sighting plane.The swivel snap was to set the cant at your favourite angle and allow clearance from the ground when changing positions.The strap was looped behind the holster when on the range,when the weapon not in use would be snapped around the front securing the weapon.Up here in Canada I was a member of a PPC team made up from civilians and police, and we would travel all over Canada and the USA for matches,great fun and nice people.One more thing is my holster cost 1989=90 was 105 dollars cdn and guess what I still have it in like new condition. hope this helps