I have an older Marlin 1894 in .44 magnum, and want to put sling swivels on it. I don't want to drill and tap the forearm nose cap or replace it, but rather want to use the swivels that have the two piece circular "clip" that fits around the magazine tube. I looked online, and I only seem to find the Uncle Mike's version for the .357. What am I missing? Anyone know if what I want is available?