Pro2a Tactical's 224 Valkyrie AR-15 NR Side Charging 224 Valkyrie Uppers are made with milspec or higher quality components and backed by our limited lifetime warranty. The 224 Valkyrie catridge introduced by Federal Ammunition in 2017, is a 22 caliber rimless bottlenecked round developed for extreme long range applications, offering more energy and distance than 5.56 NATO. It is a necked down 6.8 SPC II case and remains supersonic past 1000 yards. 

224 Valkyrie

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