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BSA M20/M21 Silencer Plunger 1 3/4" 1950-

BSA M20/M21 Silencer Plunger 1 3/4" 1950-

BOA-B13P-S
BSA M20/M21 Silencer Plunger
500/600 cc
Made in UK
Muffler
The length is 615 mm = 24 ¼?
The Diameter of the barrel = 7?

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