This is a Short Barreled Rifle (SBR) version of the AUTHORITY Elite rifle.  ALL NFA RULES APPLY. (All Sales Are Final On NFA Items, No Returns) The BATTLEARMS® AUTHORITY™ series of firearms are designed from the ground up and purpose-built as the next generation AR-15. The heart of the rifle is the billet BAD556 7075-T6 aircraft grade aluminum receiver with integral ambidextrous controls and free-float rail handguard with M-LOK attachment points at 3, 6, and 9 o’clock positions. At 12 o’clock is a full-length Picatinny accessory rail with our signature notch cut matching the upper receiver. Every firearm is equipped with a 4150 chrome-moly steel black nitride barrel for durability and accuracy. Each barrel is individually head-spaced with matching 9310 steel bolt and 8620 black nitride carrier for ultimate reliability and ease of cleaning. Rifle models utilize a mid-length gas system for reliable and smooth cycling action while reducing recoil and minimizing wear. SKU: AUTHORITY-014UPC: 810033782725Manufacturer: Battle Arms Development, Inc.Receiver Model: BAD556-AMBI (Billet)Type: Semi-Auto rifle Caliber: .223 WyldeMuzzle Thread: 1/2x28 TPIRail Length: 9.5in WORKHORSE® MLOK Freefloat HandguardGas System: Carbine LengthBarrel Length: 10.5inBarrel Twist Rate: 1:7TBarrel Profile/Finish/Material: 4150CM Profile Barrel, Black Nitride. .750 Diameter Gas Block JournalMuzzle Device: Thumper Compensator Black NitrideWeight: 5.5 lbs (2.49 kg)Overall Length: 31in (787.4mm)Collapsed Length: 28in (711.2mm)Charging Handle: RACK™ Ambidextrous Charging HandleTrigger: Enhanced Nickel TeflonSafety: BAD-ASS-PROStock: B5 Bravo - Adjustable 6-Position StockFinish: BATTLEARMS® Combat GreyMagazine: (1) 30rd MagazineSights: Optics Ready Platform