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BP - G-19 - July 1988 - - GTT bdc, Austrian markings on slide and barrel. Original tupperware box labeled Glock 17, Best in 1987.
What does GTT bdc mean?
bdc - barrel date code. It represents date when the barrel/gun was test fired in Austria.
GTT - First letter is month (G is July), next 2 letters is year (T is 8). GTT translates to July 1988.
 
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