WTB: Remington 870 accessories - FTF San Antonio

[twain55]

I’m looking for the following for my Remington 870:

1. SideSaddle shotshell carrier
2. Mag extension for a 20” barrel

New or used. (Any condition but needs to be functional. )
Obviously needs to be priced better than what I can buy new.
(I can also trade some of my 7.62x39.)
FTF in San Antonio only please.
Thanks for reading. God Bless Texas.