USED Uncle Mike's Hammer Extension Blued Marlin 336 Clam. OpticsPlanet Inc is an Authorized US Distributor for Uncle Mike's products. Slip over hard-to-reach or hard-to-cock hammers for extra leverage. A must for scoped guns with external hammers. Blued steel knurled surface for easy gripping. Fits most hammer-type guns either right or left side. (Allen wrench included.) No low wall or high wall designs. Uncle Mike's Hammer Extensions for a Better Grip is available with the following options: Uncle Mikes 2450-0 Uncle Mike's Gunsmith Accessories - 94 Hammer Extension Uncle Mikes 2451-0 Uncle Mike's Gunsmith Accessories - 94/22 Hammer Extension Uncle Mikes 2452-0 Uncle Mike's Gunsmith Accessories - Marlin 336 Hammer Extension Uncle Mikes 2456-0 Uncle Mike's Gunsmith Accessories - Blackhawk Topper Handi-Rifle Hammer Extension Uncle Mikes 2457-0 Uncle Mike's Gunsmith Accessories - BLR 81 Hammer Extension Uncle Mikes 2458-0 Uncle Mike's Gunsmith Accessories - 83 & Later Marlin Hammer Extension Specifications for Uncle Mike's Hammer Extension: Manufacturer: Uncle Mike's Color: Black Fabric/Material: Blued Steel Features of Uncle Mike's Hammer Extension Blued steel knurled surface for easy gripping. Fits most hammer-type guns either right or left side (Allen wrench included). No low wall or high wall designs. Package Contents: Uncle Mike's Hammer Extension What firearm models does the manufacturer say Uncle Mike's Hammer Extension is compatible with? The manufacturer says that Uncle Mike's Hammer Extension is compatible with Ruger Blackhawk Winchester Model 1894 .22 Marlin Model 83 Winchester Model 1894 Marlin Model 336Uncle Mike's 24520: Hammer Extension Blued Marlin 336 Clam