For those wishing to add a suppressor to their 1911, the Nighthawk Custom Drop-In Series threaded 9mm barrel is built to offer shooters unmatched quality in a drop-in part. Featuring .500x28 threading, our suppressor-ready 4.25" barrel is Fully Machined from a solid, premium-grade 416 stainless steel billet, providing an instant upgrade over your stock commander-length barrel. Precision CNC machined to provide the accuracy Nighthawk Custom is known for, this barrel is an excellent option for a shooter looking to increase the performance of their current 1911. All Nighthawk Custom 9mm barrels come with a Wilson/Nolan ramped cut. Included are the bushing, link, and pin, each part Fully Machined from a solid steel billet to ensure the performance, durability, and reliability to meet the highest standards of our customers. At Nighthawk Custom, we take pride in making the highest quality parts available on the market. With extreme importance placed on quality, they believe you will...