The Safariland 6390RDS STACC HD P4 X300U STX BLK is a duty-grade holster engineered for serious shooters who carry a pistol with a mounted light and demand rock-solid retention and accessibility. This holster is purpose-built around handguns equipped with the SureFire X300U light, making it ideal for law enforcement, armed professionals, and dedicated civilian practitioners who've invested in quality mounted-light systems. Safariland's reputation for dependable retention and draw speed translates directly here—this is the kind of gear that has to work when it matters.

The 6390RDS series combines Safariland's proven passive retention mechanisms with active features designed to lock your gun securely in place while still allowing a quick, natural draw. The STX laminate construction delivers durability and weather resistance in demanding field conditions, whether you're running drills at the range, training in variable weather, or carrying daily. The SLS (Self Locking System) retention technology is intuitive for trained shooters—no unnecessary fumbling, just reliable security and muscle-memory-friendly access.

This holster's design centers on P4 cant geometry, giving you a carry angle that balances concealment with draw efficiency. For shooters who've standardized on the X300U light platform, this removes the guessing game of compatibility. Whether you're building a duty rig, a training setup, or a high-end carry system, the 6390RDS gives you the kind of retention and finish quality that won't let you down.