Marlin 336 mount?

[Waddle Whacker]

Is this the mount I need to put a FF3 on an 870 20 gauge? Also, do you guys use the sight gaurd made by Burris, or, are there other options? Thanks.

[killdee]

http://www.midwayusa.com/product/683290/burris-fastfire-base-marlin-336-444-1895-matte

Heres the mount, theres a member on here who makes a protector for the ffII but I dont think he has 1 for the III yet.

[Waddle Whacker]

Thanks!