870 20ga scope base question?

[sswv]

I had my Stevens 301 20ga compact drilled and tapped for a scope base and I like the idea so much I'm thinking of doing my 870 20ga.  I looked at Weaver and a 48454 or a 429M is what it calls for BUT, considering a 12ga receiver is a wee bit wider than the 20ga will this still fit?.

thanks in advance

[PV266]

20 and 12 use the same scope base.

[Vintage]

I have just had a 870 20 gauge drilled for the weaver mount (48454) and it works great with a Vortex red dot.

[sswv]

thanks y'all.   I just ordered a Weaver 429M.  gonna strip out the receiver and get it drilled and tapped as soon as the base arrives.

[sswv]

done deal.  I already have one 2x32 Pro Diamond for the 301 but haven't mounted it yet and I have another on the way.  scopes on shotguns is a strange world for me right now but I'm thinking I'll be happy.

[Vintage]

Is there a difference between the 48454 and the 429m. Do they have the same hole pattern ?

[sswv]

I may be wrong but I think the 48454 is gloss black and I know for a fact the 429M is matt black.