Luth-AR 16 in Light Weight kit minus Lower Receiver w/coll. Stock M-Lok Black Carbine. It features a 1-7 twist rate optimized for stabilizing a wide range of bullet weights. The assembly comes with an F marked front sight base and a 2-piece handguard making it easy to install and use. The barrel is made of high-quality 4150 steel ensuring durability and longevity. The SOCOM profile gives this assembly a sleek and classic look making it suitable for both recreational and professional use. This is an excellent option for shooters who want a classic look with modern performance. Starts with our 16 in M4 SOCOM profile barrel with F Marked Front Sight Base 5.56mm made from 4150 CMV steel with a 1-7 twist mated to our A3 Flattop receiver which includes our bolt carrier charging handle forward assist and ejection port cover. Specifications for Luth-AR 16 in Light Weight Kit minus Lower Receiver w/Collapsible Stock: Manufacturer: Luth-AR Caliber: 5.56mm Overall Length: 26 in Barrel Length: 16 in Barrel Profile: Light Weight Barrel Twist Rate: 1-9 Firearms Threads Per Inch: 1/2×28 Handguard Type: Free-Float Muzzle Device: A2 Flash Hider Finish: Anodized Color: Black Gun Model: AR-15 Fabric/Material: Aluminum Gas Block Journal Size-Diameter: .750 in Handguard Length: 15 in Gun Rail: M-LOK Gun Type: Carbine Magazine Included: No Included Accessories: Collapsible Stock Country of Origin: USA Package Contents: Luth-AR 16 in Light Weight Kit minus Lower Receiver w/Collapsible Stock Fully assembled 16 in Lightweight 5.56 mm Barrel Upper with 15 in Keymod or MLOK Palm Handguard MBA-3 Adjustable Carbine Buttstock Assembly Complete Lower Parts Kit What firearm models does the manufacturer say Luth-AR 16 in Light Weight Kit minus Lower Receiver w/Collapsible Stock is compatible with? The manufacturer says that Luth-AR 16 in Light Weight Kit minus Lower Receiver w/Collapsible Stock is compatible with AR-15Luth-AR RKL-16-3M: 16 in Light Weight kit minus Lower Receiver w/coll. Stock M-Lok Black Carbine
Faxon Firearms Duty Series AR-15 5.56 Nato 16in Upper Receiver Socom Mid Length 1-8 Twist 1/2x28 w/BCG Black Original price was: $738.00.$679.00Current price is: $679.00. 
DEMO Angstadt Arms MDP-9 6in Complete Roller Delay Upper Receiver Assembly - Surpressor Ready Black 9mm Original price was: $1,904.99.$1,349.00Current price is: $1,349.00. Luth-AR 16 in Light Weight kit minus Lower Receiver w/coll. Stock M-Lok Black Carbine
Original price was: $624.99.$587.49Current price is: $587.49.
