Tools/Guides
Quick reference tools for dating firearms, reading choke codes, and decoding proof marks — useful when you are preparing an import with MGI.
Proof Mark Decoder
Identify Birmingham, London, Liège, Gardone, Eibar, French, Austrian, and German stamps — house marks, nitro proof, gauge, chamber, and steel-shot.
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Choke Markings Guide
Read Beretta star codes, Browning Invector notches, and common letter abbreviations on shotgun barrels and tubes.
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Browning / Miroku Age Lookup
Decode the two-letter date code used on Browning and Miroku firearms after 1975.
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Inches & Centimetres Converter
Convert barrel and overall lengths. Inches are written as gun fractions, such as 28" or 3 1/2", not decimals.
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Beretta Age Lookup
Look up Italian proof date codes for Beretta and other Italian-made firearms.
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