Giving details, the Rangers spokesman said here on Sunday that four terrorists of banned outfits were arrested from Lyari and Machar Colony areas.
The weapons were also recovered from the hideouts of the terrorists.
The Rangers arrested 15 alleged criminals including target killers in a series of raids in Al Falah, Safoora, Surjani, Marten Quarters, Ramswami and Dhobi Ghat areas.