Do 20" slug barrel and 28" barrel fit on Rem870 Express 18"?

[JohnQPublic]

Can someone here tell me if the 28" vent-rib barrel with a front bead sight and a 20" slug barrel with adjustable Truglo® rifle sights (available on the 870 Express Combo FR-RS Combo) will fit on an 870 Express Synthetic 18" (with 4 round capacity)?

Thanks,
John

[Jamie]

I bought an 870 express that came with a 28'' barrel, put a Remington 18.5'' on it. I'd ASSume the 28'' would fit, not sure about the slug barrel. Is it a rifled barrel?

[JohnQPublic]

Thanks. I thought that any barrel that fit one Rem 870 Express would fit another Rem 870 Express as long as it didn't have the longer 7 round tube.

[Banshee]

all 870 barrels interchange with the exception of the Special Field, MCS and the new express that has the longer magazine tube