Alexander Arms Complete Upper Assembly .17 HMR 18 Barrel 10-Rounds

Complete Upper Assembly Features The 17 HMR AR-15 upper features an 18 barrel 1:9 twist rate 1/2-28RH threading an A2 flash hider a blowback operating system two 10 round magazines and a parts kit for lower conversion. Complete Upper Assembly Specifications Brand: Alexander Arms Category: Uppers Gun Platform: AR-Style Caliber: 17 HMR Model: Complete Upper Assembly Barrel Length Range: 18 to 18.99 Sights: None Optic Ready Capacity: 10rd Firearm Type: AR-15 Muzzle: A2 Flash Hider Firearm Fit: AR-15 Handguard Finish: Black Handguards: M-LOK Max Capacity: 10 Receiver Finish: Black Cerakote Receiver Material: Aluminum Thread Pattern: 1 / 2-28 tpi Twist: 1:9 Weight: 4.50 lbs Barrel Finish: Black Barrel Length: 18