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Posted: 2/26/2008 10:07:42 PM EDT
| I overheard a man at local gun show saying you could somehow adjust the fit of AR receivers to eliminate slop and play, and something about different sizes of pivot pins ? Anyone heard of this ? Thanks, Jim |
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Armalite Tech Notes, from the Library at www.armalite.com www.armalite.com/images/Tech%20Notes/Tech%20Note%2055,%20Receiver%20Tightness.pdf A few quotes from Tech Note #55: Receiver Tightness "There is an intuitive belief that a tight fit between the upper and lower receivers is essential to accuracy, and that loose fit is bad. Oddly enough, this is untrue." "...but normal forging and machining variations may result in a small amount of play between the receivers or slight side to side receiver mismatch." And concluding: "Receivers will normally exhibit a certain amount of looseness. This is normal and will not affect accuracy. Shooters may reduce the movement by insertion of a small amount of material between the receivers to improve the feel of the rifle, but it won’t improve accuracy." Thanks to Mark Westrom of Armalite for this great resource. |
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+1 on the #7 O-rings....put one on the front take-down pin of my Stag 2T & it reduced the tiny bit of wobble that was there, but I can still pop out the pins by hand, so it's not overly tight. I like it better than the Accuwedge I tried. 79 cents at Home Depot, Lowes, etc... http://i275.photobucket.com/albums/jj303/orygun55sixer/7O-ring.jpg Installed. http://i275.photobucket.com/albums/jj303/orygun55sixer/7O-ringinstalled.jpg |
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