The matte black Detachable Side Mount #10M from Weaver detaches and attaches in seconds, and just like Weaver detachable top mounts, the bases themselves do not detach. Side mount brackets are available in a "high profile" standard or long length to accept a variety of scopes.
Fits:
Marlin 512 Slugmaster & 55 (drill and tap)
New Haven 495B
Note: Use only with side mount bracket.
Note: Use only with side mount bracket.