Luth-AR Lightweight Complete Upper Barrel Receiver Assembly 5.56mm 20in 11.5in HBAR Carbine 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized

Luth-AR Lightweight Complete Upper Barrel Receiver Assembly 5.56mm 20in 11.5in HBAR Carbine 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized. 56mm Lightweight barrel made from 4150 Chrome Molly with a 1-9 twist mated to Luth-AR A3 Flattop receiver which includes bolt carrier charging handle forward assist and ejection port cover. The upper is then topped off with Luth-AR Lo-profile gas system and ergonomic 15in Palm Handguard with KeyMod slots and a Picatinny top-rail. Specifications for Luth-AR 5.56mm Lightweight Complete Upper Barrel Receiver Assembly: Manufacturer: Luth-AR Caliber: 5.56x45mm NATO Gas System Length: Carbine Length Barrel Twist Rate: 1-9 Threads per Inch: 1/2x28 Muzzle Device: A2 Flash Hider Finish: Manganese Phosphate Color: Black Gun Model: AR-15 Condition: New Fabric/Material: 4150 Chrome Molly Vanadium Gas Block Journal Size-Diameter: .750 in Gun Rail: KeyMod Weight: 8 lb Magazine Included: No Features of Luth-AR AR-15 11.5in Lightweight Complete Upper Barrel Assembly Available in 11.5 inch 5.56 mm 4150 Chrome Moly Threaded Barrel - Thread Pitch 1/2 x 28 Gas Block Diameter .750 Gas Tube Length - Carbine 1-9 RH Barrel Twist 6 Lands and Groves M4 Feed Ramp Button Broached Package Contents: Luth-AR 5.56mm Lightweight Complete Upper Barrel Receiver Assembly What firearm models does the manufacturer say Luth-AR 5.56mm Lightweight Complete Upper Barrel Receiver Assembly is compatible with? The manufacturer says that Luth-AR 5.56mm Lightweight Complete Upper Barrel Receiver Assembly is compatible with AR-15Luth-AR BAA3-L11: Lightweight Complete Upper Barrel Receiver Assembly 5.56mm 20in 11.5in HBAR Carbine 1x9 1/2x28 Picatinny M-LOK A2 Flash Hider Anodized Manganese Phosphate Black