Tiger Rock AR-15 Rifle Build Kit BCG LPK and Stock Kit 5.56mm 17in 16in Barrel M4 A2/Gov Carbine 1x8 1/2x28 10in Quad Rail Handguard Brake Nitride

Tiger Rock AR-15 Rifle Build Kit BCG LPK and Stock Kit 5.56mm 17in 16in Barrel M4 A2/Gov Carbine 1x8 1/2x28 10in Quad Rail Handguard Brake Nitride. Lower receiver is not included. Specifications for Tiger Rock 5.56mm AR-15 Rifle Build Kit: Manufacturer: Tiger Rock Caliber: 5.56x45mm NATO Overall Length: 17 in Barrel Length: 10 in Barrel Profile: Medium Gas System Length: Carbine Length Barrel Twist Rate: 1-8 Firearms Threads Per Inch: 1/2x28 Handguard Type: Free-Float Muzzle Device: Brake Finish: Nitride Color: Black Fabric/Material: Steel Aluminum Gas Block Journal Size-Diameter: .750 in Handguard Length: 10 in Gun Rail: Quad Gun Type: Rifle Gun Make: AR Platform Gun Model: AR-15 Weight: 1.8 oz Barrel Material: 4150 Chrome Moly Vanadium Magazine Included: No Mount Type: Picatinny Features of Tiger Rock 5.56mm AR-15 Rifle Build Kit: Kit does not come assembled Kit cannot be changed no modifications will be accepted This is NOT a FFL item Package Contents: Tiger Rock 5.56mm AR-15 Rifle Build Kit AR-15 Bolt Carrier Group Assembly - Flat Design - Black Nitride AR-15 Stripped Upper Receiver AR-15 Forward Assist AR-15 Ejection Port Dust Cover Complete Assembly AR-15 Tactical Charging Handle Assembly AR-15 10in Mid Length Free Float Handguard w/Barrel Nut .750 Low Profile Steel Gas Block with Roll Pins and Wrench -Black AR-15 / AR-10 Carbine Length Gas Tube 9.75in -Stainless Steel A2 Muzzle Brake for 1/2inx28 Pitch - 5 Ports 5.56 NATO 16in Carbine Length Barrel 1-8 Twist Nitride Finish M4 Profile AR-15 M4 Six Position Buffer Tube Kit -Mil-Spec Lower Parts Kit w/ Standard Grip and Trigger Guard What firearm models does the manufacturer say Tiger Rock 5.56mm AR-15 Rifle Build Kit is compatible with? The manufacturer says that Tiger Rock 5.56mm AR-15 Rifle Build Kit is compatible with AR-15Tiger Rock RK15-FAR10-NL: AR-15 Rifle Build Kit BCG LPK and Stock Kit 5.56mm 17in 16in Barrel M4 A2/Government Carbine 1x8 Twist 1/2x28 Thread 10in Quad Rail Handguard Brake Nitride Anodized Black