New made 16" 9mm barrel for the STERLING MK4, includes barrel trunnions. This barrel is designed to work with our semi auto kit and reduced diameter tube (StrlSAT) and will not fit an original Sterling. This barrel screws into the front of the receiver which makes it very easy for maintenance and caliber changes. All you need is a wrench to remove the barrel. This is a 922r compliant part. Welding is required for installation.

Due to demand, this product is limited to one per customer per 6 months until noted otherwise. Thank you.