The RBL-12 is chambered for 3-inch shells, and mine weighs 3.7 ounces more then my 32-inch barrel Super-Fox and two ounces less then my Fox-Sterlingworth Wildfowl.
As to the CSMC lasercut checkering being dark on some wood, from WW-II into at least the 1960s it was quite common to brush the checkering on a gun with oil stained with dark pigment to set the checkering off from the general color of the wood.
Walter, my NIDs work just fine. I did own a 12-gauge No. 1E in the 441xxx range that would kick open on firing, but it hit the river of commerce.
