The heart of every Recon Tactical is our unsurpassed Wilson Combat match-grade, medium-weight stainless steel barrel designed for gilt-edge accuracy and sustained high rates of fire. 224 Valkyrie The new 224 Valkyrie is based on a 6.8 SPC case necked down to .22 caliber. It offers dramatically improved extended range trajectories over all other AR-15 cartridges with roughly half the recoil of .308-based long range cartridges offering comparable ballistics. Shooters can expect best-in-class long range ballistics, supersonic flight past 1,300 yards and extreme long-range accuracy from this cartridge. We have optimized our match-grade barrel twist for the best long-range performance with match bullets. The 224 Valkyrie uses a 6.8 SPC bolt and magazine. Caliber: 224 Valkyrie Barrel Length: 20" Overall Length: 38" Weight Empty: 7 lbs. Billet Upper/Lower Recievers Wilson Combat Recon Tactical Match Grade Barrel Rifle Length Gas System with Lo-Profile Gas Block Threaded Muzzle with Q-Comp Wilson Combat M-LOK Rail Bravo Company Pistol Grip BCM Gunfighter Charging Handle Rogers/Wilson Super-Stoc Wilson Combat TTU (Tactical Trigger Unit) Single Stage, 4# Premium Mil-Spec Bolt and Bolt Carrier, NP3 Coated Mil-Spec Hard Anodize Finish on Upper / Lower Receivers Armor-Tuff® Finish NOTE: All serialized items must be shipped to an Federal Firearms License (FFL) dealer. One of our customer satisfaction representatives will contact you to arrange shipment of your serialized item.