Instructions on installation of the scope mount is provided in the packaging. All Henry scope mounts accept Weaver style detachable 1" top mount rings (rings not included). Picatinny-style rails in particular accept Weaver or Picatinny style top mount rings as well as red dots. Screws are included with the mounts.

Note to Big Boy Owners (H006/H012 Series)

Previous production from pre-2011 (or 1st Generation) Brass Big Boy rifles were drilled and tapped on the barrel under the rear sight, they were NOT drilled/tapped on the receiver. You will need to use BB-CSM for 1st Generation H006 Brass Big Boy series.

In 2011 we began shipping 2nd Generation Brass Big Boy rifles which feature receivers that are drilled and tapped for the scope mount. For 2nd Generation Brass Big Boys you can use either the BB-RSM (Weaver-style) or BB-RSMP (Picatinny-style) rails. 2nd Generation Brass Big Boys start with the following serial numbers:

H006 = BB0047222
H006M = BB0015530M
H006C = BB0021188C

ALL H012 Steel Big Boy Series guns are 2^nd Generation.

The BB-CSM measures out at 5 5/8" with 2 fixed slots.

The BB-RSM measures out at approximately 4 5/8" with 2 fixed slots.

The BB-RSMP measures out at approximately 4 5/8" with 11 adjustable slots.

If you would prefer a solid ring and base set piece as opposed to a Weaver or Picatinny base for your 2nd Generation Big Boy, feel free to