Luth-AR 14.5in SOCOM Profile Barrel Assy w/FSB and 2 Pc Handguard 1-7 Chrome Lined BA-F14-7C. 5 in M4 SOCOM profileChrome Linedbarrel with F Marked Front Sight Base 5.56mm made from 4150 CMV steel with a 1-7 twist mated to our A3 Flattop receiver...