Lego Barret 50. Cal Sniper Rifle By AjKing in LivingLEGO & K'NEX1,67934Save PDFFavoriteIntroduction: Lego Barret 50. Cal Sniper RifleBy AjKingFollow More by the author: About: Sup guys? I'm Aj. My goal on instructables is to show you guys awesome things that you guys will love. I also follow my followers :) More About AjKing » Here is a lego barret 50. Cal sniper rifle. Step 1: Reload The gun has reload action. Step 2: Overall Look Here is an overall look of the gun.