Luth-AR 16 in Light Weight 1-7 kit minus Lower Receiver w/fixed stock M-Lok Black Rifle

Luth-AR 16 in Light Weight 1-7 kit minus Lower Receiver w/fixed stock M-Lok Black Rifle. Specifications for Luth-AR 16 in Light Weight 1-7 Kit Minus Lower Receiver w/Fixed Stock M-Lok: Manufacturer: Luth-AR Caliber: 5.56mm Overall Length: 26 in Barrel Length: 16 in Barrel Profile: Light Weight Barrel Twist Rate: 1-7 Firearms Threads Per Inch: 1/2x28 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: Rifle Magazine Included: No Included Accessories: Fixed Stock Country of Origin: USA Package Contents: Luth-AR 16 in Light Weight 1-7 Kit Minus Lower Receiver w/Fixed Stock M-Lok Fully assembled 16 in Lightweight 5.56 mm Barrel Upper with 15 in Keymod or MLOK Palm Handguard MBA-1 Buttstock Assembly Complete Lower Parts Kit What firearm models does the manufacturer say Luth-AR 16 in Light Weight 1-7 Kit Minus Lower Receiver w/Fixed Stock M-Lok is compatible with? The manufacturer suggests that Luth-AR 16 in Light Weight 1-7 Kit Minus Lower Receiver w/Fixed Stock M-Lok is compatible with AR-15Luth-AR RKL7-16-1M: 16 in Light Weight 1-7 kit minus Lower Receiver w/fixed stock M-Lok Black Rifle