Brand new custom order 224 Grendel 24" Mcgowen 1:8 twist + 2" rifle length gas tube and Aero .936 gas block included. Barrel is not threaded. 15” cheap handguard and Aero Precision stripped upper, left the forward assist. Will throw in 45 pieces of sized and trimmed 6.5 grendel starline brass. Redding 6.5 grendel fl bushing die with three bushings $400 shipped! Need the funds for another build! Never been fired just assembled!