This Gun Holster FITS SPRINGFIELD ECHELON XD 4.5" BRL OPTIC RED DOT READY OPTICAL and is worn as a Shoulder holster with belt strap for strong stability. Material is a strong 800 Denier Nylon WE NOW HAVE IN STOCK TOP RAIL MOUNTED OPTICAL, OPTICS, RED DOT SHOULDER HOLSTERS AND HIP HOLSTERS THAT FIT MOST ALL AUTO PISTOLS, MESSAGE US WITH YOUR GUN'S EXACT MAKE AND MODEL FOR A LINK TO VIEW THE LISTINGS. NYLON HOLSTERS START AT $14.95