This complete Colt M4 LE Trooper firearm is no exception to that rule as it was based on the Colt's legendary M4 platform. Designed from the ground up by veteran trainers Mike Pannone, Daryl Holland, and Ken Hackathorn, the Colt LE Trooper fills every need you have for a modern sporting rifle. Built with 7075-T6 aluminum forged upper/lower receivers, featuring a free float M-LOK compatible hand guard along with a lightweight 16.1" barrel sporting a 1:7" twist rate. This is the perfect rifle for defending our nation or your home. ** Limited Edition ** - CALIBER .223 REM/5.56MM NATO - MAGAZINE (1) 30rd capacity PMAG - BARREL 16.1" Lightweight 4150 CMV, A2 Flash Hider - HANDGUARD Extended Free Float Centurion Arms M-LOK - RECEIVERS 7075-T6 aluminum, Lower M4 Carbine - TRIGGER Colt Standard - STOCK M4 Carbine Collapsible