FlatSider™ XR12 Belt Slide Holster

Quick Summary

• Classic leather belt slide holster for off-duty and concealed carry
  
  
• FlatSider molding sits close to the body for improved concealment
  
  
• Mid-ride with FBI forward cant for natural draw ergonomics
  
  
• Level I retention thumb break with adjustable tension screw
  
  
• Molded belt slots fit belts up to 1-3/4 inches
  
  
• Full-length sight channel for snag-free holstering
  
  
• Fully covers trigger for enhanced safety
  
  
• Hand-stitched for long-lasting strength
  
  
• Made in the USA

The Aker FlatSider™ XR12 Belt Slide Holster is a premium leather off-duty carry option designed for concealed everyday carry and all-day comfort. Its unique FlatSider molding places 100% of the holster pocket away from your body, letting the weapon ride closer and flatter than traditional pancake designs for improved concealment and comfort.

Built with a mid-ride and FBI forward cant, the XR12 sits comfortably on your belt while allowing a natural, smooth draw. It features a Level I retention thumb break strap backed by an adjustable tension screw, giving you both secure carry and customizable draw resistance. The molded belt slots are shaped to slide easily onto belts up to 1-3/4 inches, making it compatible with most everyday or concealed-carry belts.

Carefully hand-finished with precise stitching around the belt slots to prevent stretch and sag over time, the XR12 also includes a full-length molded sight channel so standard and raised sights glide through without catching. The holster fully covers the trigger for added safety, and its classic leather construction delivers durability and a refined look that only improves with use.

Firearm Compatibility Notes

Beretta 92: Compatible with standard full-size Beretta 92-series pistols, including the 92F, 92FS, 92FS Inox, 92G, 92 Brigadier, and Vertec models.

1911: Select the 1911 option based on barrel length. Government (5"), Commander (4.25"), and Officer/Defender (3"–3.5") models require different holster sizes.

Glock: Select your firearm by frame size and slide length. Models within the same size group share the same holster fit across calibers, finishes, and generations. For proper fit, pistols must be configured without medium or large backstraps installed. MOS configuration does not affect holster fit for this model.

Heckler & Koch (H&K): Full-size, compact, and subcompact H&K pistols use different holster molds and are not interchangeable. Caliber differences within the same model family (9mm vs .40) do not affect holster fit. Select the option that matches your specific H&K model family.

Sig Sauer: Select by model family and slide length. Variations such as Legion models, Nitron finishes, DAK trigger systems, or “R” designations do not affect holster fit for this model. Select the option that matches your SIG Sauer pistol family and overall size.

Smith & Wesson M&P:  Select by frame size and slide length. Full-size, compact, and Shield models use different holster molds and are not interchangeable. Generation differences such as M&P 1.0 versus 2.0 do not affect holster fit for this model. Caliber differences within the same size class also do not affect fit.

Springfield: Select by model family and barrel length. XD and XD Mod.2 pistols share the same holster fit when the barrel length matches. XD(M), XD-S, and Hellcat pistols use different holster molds and are not interchangeable.