The Zion-25 series seeks to emulate and exceed the successful large frame gas guns that have come before. The large frame gas gun space, AR-10s to group them loosely, has no standard comparative to AR-15’s. The variance between manufacturers has resulted in a wide range of rifles and performances. The Zion-25 series of carbines and DMRs (Designated Marksman Rifles) are an accurized evolution of the no-nonsense approach to a modern duty grade AR-15 that resulted in the Zion-15 series. The series features highly accurate free floated 1:8 twist barrels for the 6.5 Creedmoor models and 1:10 for the .308 Winchester models. They are wrapped in new ARCA compatible M-LOK handguards, kitted with ergonomic B5 Systems grips and stocks, and sport QD sling compatibility out of the box. In addition, the Z-25s all come with the phenomenal IWI exclusive Timney 2-Stage trigger that debuted with the Z-15 SPR.