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Old 08-27-2007, 10:39 PM
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fabsroman fabsroman is offline
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Join Date: Nov 2001
Location: Maryland
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Yep, the older Beretta guns used Mobil chokes, while the newer ones use the Optima choke tube. The difference is extremely evident just upon looking at them. The Optima tubes are about an inch longer and the threading on the Optima tubes is longer. The 390 uses the older Mobil chokes (i.e., shorter tubes with less threads).
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