H&R 1871 12 gauge including Pardner Pump interchange with Muller Invector/WinChoke threaded chokes.
H&R 1871 Excell Auto 5 12 gauge (SINCE Remington purchase) interchanges with Muller's RemChoke style.
We do not currently offer chokes for H&R 1871 20 gauge guns or for H&R 1871 Excell Auto PRE Remington purchase.