ZerobulkA(R) Holster is one of the smallest, most comfortable, handgun carry devices on the market today. It uses a patented design that secures a firearm by the inner barrel diameter and barrel length, versus the external features of the handgun. Due to this design, it allows its user to carry with external lasers and lights. Features Minimalist Design Virtually No Printing Clips onto Belt Within Seconds Works with Most Lasers/Lights Trusted by Law Enforcement & Military Specifications Ambidextrous Inside the Waistband Carry Available for Most Semi-Auto Handguns Best Used with 1.5" Belts Available Calibers and Barrel Lengths Caliber Compatabilty .380 ACP .357 Sig/ 9mm 10mm/ .40 S&W .45 ACP Barrel Length Compatability 2.75" - 2.99" (.380 ACP) - XS 3.00" - 3.25" (.380 ACP) - SM 3.26" - 3.50" (.380 ACP) - MD 3.00" - 3.25" - XS 3.26" - 3.75" - SM 3.76" - 4.25" - MD 4.26" - 4.75" - LG 4.76" - 5.00" - XL