Home / Accessory-Silencer Accessories / Gemtech ADAPTER GSG-1911 M9X.751/2-28# Sale! Gemtech ADAPTER GSG-1911 M9X.751/2-28#$4500 Original price was: $4500.$4183Current price is: $4183. Out of stock SKU: 12205 Category: Accessory-Silencer Accessories Product ID: 31237 Description Description M9X.75 to 1/2-28 AdapterFits GSG 1911s Related products Yankee Hill Machine Company QD MOUNT THEAD PROTECTOR $1795 Sale! Yankee Hill Machine Company BLAST DEFLECTOR 5.56/30 CAL $9095 Original price was: $9095.$8412Current price is: $8412. Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP.578X28 $7495 Original price was: $7495.$7135Current price is: $7135. Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP 16X1LH $7495 Original price was: $7495.$7135Current price is: $7135.