Manufacturer: Pearce Grip. Manufacturer Part Number: PG-SP13. Model: Grip Extension. Compatible with Equalizer 9mm 13/15 Rd. Color: Black. Replaces the base plate on the S&W Equalizer. This extension does not alter capacity. This product is designed to help you keep a tight consistent grip without adding too much additional grip length. It adds approximately 5/16" inch additional gripping surface with an ergonomic curve providing a more positive grip than the factory sleeve alone. For 13/15 Rd 9mm ONLY. Please note: Includes 1 Nimrod's Wares Microfiber Cloth per order, regardless of quantity purchased. Microfiber cloth may be tan, gray, or black.