Our Inside Waistband holster for the Springfield Armory Echelon 4.0C and the Streamlight TLR-7 X and TLR-7 A weapon-mounted light is vacuum formed with a precision machined mold designed from a CAD model of the actual firearm.  The holster is designed to accommodate most red dot sights mounted to the pistol. The magazine pouch for this model can be found here: Springfield Echelon IWB Magazine Carrier  Springfield Echelon OWB Magazine Carrier Our Belt Attachment Blog Article explaining the different options can be found here: 4Bros Four Brothers Holsters Inside Waistband Attachments Explained This holster is designed to use the 1913-1 Key with the TLR-7 A or TLR-7 X light. The holster will not work without the light mounted to the gun. The data sheet for the Streamlight TLR-7 X can be found here. Features: Open Muzzle for threaded barrels or compensators  Full sweat guard Adjustable retention Adjustable ride height and cant.  Made from .080" thick thermoplastic for durability Minimal material and smooth edges to reduce printing. Optional Modwing includes 2 inserts to allow the user to adjust the amount of leverage placed against the inside of the belt to reduce firearm printing Proudly made in the USA. Each holster is formed, trimmed, and folded in-house. Final fit and function tests are done with the actual pistol to ensure the holster fits the gun and has the correct amount of retention. The holster's retention is easily adjusted so that the fit can be adjusted to your personal preference.  All of our Springfield Echelon Holsters can be found here: Springfield Echelon Collection *We strongly suggest you apply a removable thread locker to each screw of your holster after you receive it to prevent lost screws while the holster is in use.