U.S. Army Sgt. Jerrell D Knight, assigned to the 39th Signal Battalion, fires his first preparation round with an M4 carbine to zero the weapon under the supervision of 1st Sgt. Scott B. Null and Staff Sgt. Astin P. Muse at the 25 meter range on Chièvres air base, Belgium, Oct. 24, 2016. (U.S. Army photo by Visual Information Specialist Henri Cambier)
<dl><dd>Unit: Training Support Activity Europe</dd>
<dd>DVIDS Tags: Soldier; M4 carbine; USA; 39th Sig Bn</dd></dl>
Henri Cambier
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