The Kahr Arms all black PM4544 features a black polymer frame, just like its PM4543 match, but offers a matte blackened stainless slide to add to the overall "black-out" effect of the gun. The PM4544 matte stainless slide is blackened using an ultra hard and super thin coating. This coating has been used successfully in the knife industry to protect blades from corrosion and scratches. So, not only does the blackened slide offer a new more aesthetically desirable looking gun, but it also provides a tougher coat and protection for an officer's slide. This aids in keeping a Kahr looking just as good as it did the day bought, even after some wear and tear. Just like its counterpart, the PM4544 has an overall length of 5.67 inches, height of 4.49 inches and a 3.14-inch polygonal rifled barrel. The weight of the new all black .45 ACP is 17.3 ounces without the magazine. The magazine capacity is 5+1 in a single stack configuration. The PM4544 also matches the PM4543 with drift adjustable, white bar-dot combat sights with optional tritium night sights available.