The Rock Island Armory 56639 : The Baby Rock 3.10 9mm has a 3.10\" barrel and weighs in at 1.62lbs loaded. Includes stable low profile angled sights designed for consistent accuracy and reliability. Front and rear CNC angle grooves are cut for cyclability in times of need. Add comfortable dovetail grip safety and G10 grips and you have a lifelong compact 1911 at a great price.