Description The Polymer80 P80-PFS9-AFT-BLK Full Size AFT Kit is designed for firearm enthusiasts looking for quality and reliability. This 9mm kit features a 4.5-inch barrel and a capacity of 17 1, making it an excellent choice for both performance and versatility. Crafted by Polymer 80 Inc, this kit includes everything you need to build your own full-size firearm with precision and ease. Enhance your shooting experience with the trusted performance of the Polymer80 AFT Kit.