"Topper Jr"?

[Capt Gary]

Will the H&R Topper Jr., 410 take any of the interchangable rifle barrels?
 
Would like to pick up a 30/30 or .44 Mag barrel.
 
Thanks for any help.

[quickdtoo]

H&R will fit 357 and 44 mag accessory barrels to SB1 frames made 1987 and later (two letter serial number prefix  starting with N or H). They won't fit a 30-30 barrel to an SB1 frame, but you can fit one to an SB1 frame yourself and it will work fine if fitted properly.

Tim