Stern Defense MOD5 Complete Upper Features The Stern Defense MOD5 Complete Upper is chambered in 9mm and built around a 6 inch steel barrel with a 1:10 inch twist rate suited to common 9mm bullet weights. The barrel carries a Melonite finish which adds wear resistance and helps the bore withstand sustained firing without breaking down under heat. A threaded muzzle at .5-36 allows the addition of a compensator or suppressor for builders looking to expand the upper s capability and it pairs directly with the Stern HBC 9mm blast can for additional muzzle control. This complete upper ships with a bolt and laser engraved charging handle giving builders most of what they need to complete their 9mm project without sourcing extra parts. The Glock cut design on this upper makes it ready to pair with Glock cut lowers or to be used with Stern Defense adapters giving builders flexibility in how they configure their platform around parts they may already own. An 8 inch Mod 5 M-LOK handguard provides ample real estate for mounting lights lasers foregrips and other accessories letting shooters build out a pistol or carbine configuration to match their intended use. The handguard s M-LOK slots keep the profile slim while still offering attachment points where they are actually needed. Made in the USA the Stern Defense MOD5 Complete Upper is available for sale at GrabAGun for builders assembling a reliable 9mm AR platform for home defense range use or a dedicated pistol caliber carbine build. Stern Defense MOD5 Complete Upper Specifications Manufacturer: Stern Defense Caliber: 9mm Barrel Length: 6 Barrel Material: Steel Barrel Finish: Melonite Twist Rate: 1:10 Handguard: 8 M-LOK Made In: USA Available At: GrabAGun