2 Gas block – A part of the AR platform that is toward the front of the barrel, the gas tube begins here and terminates in the receiver. An adjustab...e gas block, like used on this upper, allows you to fine tune the amount of gas from the barrel that impinges on the bolt assembly forcing it open.3 Foul the barrel or fouling round – The first round through a clean barrel usually doesn't group where the following rounds will. So it is always a good practice to fire one round down the barrel to. He didn't remember what had made him want to swap in the first place. Thereason was totally gone from his mind. He remembered... He remembered LadyAnn coming to see him in the stables while he was shoveling hay; tellinghim about a magic necklace... but... He shook his head. She hadn't mentionedwhy she'd wanted to swap places; she'd just ordered him to do it. Andsurely that must have been - yes. That had to be a false Burt memorybecause it was from before the swap! "God!" he said, rubbing his. Glancing downward, Jack extracted an inch or so of glistening cock from inside his tender companion. As he did, he felt Emily close down behind him. Although her unseasoned vaginal muscles lacked the fitness which comes from regular exercise, her youthful elasticity provided ample compensation. Cycling his hips, Jack moved slowly back into the adolescent beauty, and this time he managed a slightly more penetrating foray into those warm, clutching depths before pausing to let Emily's anatomy. He presented himself to the Count, making it clear to everyone that he was now a knight and was to be addressed as Sir. There was much satisfaction, for Jean to hear both the Count and his former rival, Jacque le Gris call him Sir Jean. Over dinner, Jacques asked how Marguerite had faired in his absence.“My wife’s condition is no concern of yours, Le Gris,” Jean replied curtly.“I was only being polite,” Jacques replied with a smirk. “I won’t ask how your mother is doing, for fear of offending.