1. C& H Magazine Tube Mercury Recoil Reducer. This one is new never used. 11 oz., 5 inch x 3/4 inch. 6 inches long with included nylon adaptors in place. Threaded on top me end for removal if used as stock model. Price $75. 2. C & H Stock Recoil Reducer. 11 oz., 5 inch x 3/4 inch. Threaded on one end for removal from stock. This one is intact but used. Price $45. 3. Unknown manufacture stock model mercury recoil reducer. 3 inch x 0.84 inch and 9 oz. Weight. Threaded on one end for removal and knurled on same end as threaded for tight fit in stock hole. Price $ 35 4. Dead Mule Spring Recoil Reducer. Fits in stock hole. 4.3 inch x 0.88 inch with 6 oz weight. Threaded on one end. Used but in working order. Price $25.............SOLD PM me with questions. Oliver de Gravelle III