A SIMPLE KEY FOR COLT M4 CARBINE MAGPUL SL GRAY UNVEILED

For target acquisition, the rifle is equipped with the A2 front sight along with a Magpul MBUS rear sight, making certain rapid and correct sight alignment.I cleaned the a single I snagged yesterday this early morning ahead of heading for the range. Has the faint C over the copyright as well as MPC to the bolt. Right after sighting it in I put abou