Or there's these: "Winchester Lock 94 92 73 1894 1892 1873 95 Marlin Henry Gun Lever Action Rifle Lock." I use several on my Henrys to be compliant. It takes a minute to unscrew the "lock" with the provided special "key," but will not mar the stock. (I refinish my Henry stocks.) They do not also lock the hammer in addition to the lever as claimed, as they slide down the Henry grip. A good solution at US $5.50 for the lever locking problem.