<p>Caliber: .223 Remington Operation: Gas-Operated, Original Direct-Impingement System Magazine Capacity: 30 Round Magpul mag included. 10-rd aluminum mag for MA, NJ. Fixed 10-rd mag for CA. Overall Length (Collapsed): 32.50″ (82.55cm) Overall Length (Extended): 36.00″ (91.44cm) Barrel Length: 16″ Mid-Weight (40.64 cm) Barrel Muzzle Threads: 1/2″ – 28 T.P.I Approximate Weight w/o Magazine: 6.45 lbs. (2.93kg) Barrel Rifling: 6-groove, Button Rifled, 1 Turn in 8″, R.H. twist Mode of Fire Options: Safe / Fire Match-Grade, “Manganese-Phosphated†4140 Chrome-Moly Steel custom barrel 6 groove Button-Rifling 1 in 8″ R.H. twist Barrel Rifling optimized for 50 gr. to 77 gr. Bullets Chamber Accepts Factory-Loaded SAAMI Spec .223 Ammo & NATO-stamped 5.56x45mm Ammo Gas-Operated, Original Direct-Impingement System for Guaranteed Accuracy Colt Competition “Twin-Port†Muzzle Brake Carbine-style 4-Position Adjustable Buttstock Colt Competition 12″ Vented Mcatinny Handguard Rail with 11 slots. 2 – 3″ Accessory Rails with 5 slots each. Checkered A2-Style Finger-Groove Grip, Enlarged Magpul Trigger Guard Colt Competition Match-Target Trigger. Nickel-Teflon Coated. Breaks at ~6 lbs. Colt Competition Low Profile Gas Block Colt Competition Charging Handle with Extended Tactical Latch Matched Bolt & Bolt Carrier, with H-Buffer Forged & Precision-Fitted Upper & Lower Receivers with Forging Mark 13-Slot Picatinny Rail on Flat-Top Upper Receiver 1 Year Warranty. Each Colt Competition Rifle is test fired for accuracy. Accuracy Guarantee: 3-Shots in 1″ or Less at 100 yds (with specified factory ammo). A signed, serial numbered and dated test target is included with each rifle. Shipped in a Custom Colt Competition Rifle-marked cardboard shipping box with Instruction manual. Also ships with a Safariland Cleaning Kit with a custom Colt Competition Rifle Cleaning Kit case. California, Massachusetts and New Jersey compliant models are available. Please contaompetition Series at 1-855-308-2658 (COLT) for more information. Scope, scope mount and sights not included.</p>