In general, "Bangor"-class minesweepers were armed with either a single quick-firing (QF) 12-pounder () 12 cwt HA gun or a QF 20 cwt gun mounted forward. The ships were also fitted with a QF 2-pounder Mark VIII aft and were eventually fitted with single-mounted QF 20 mm Oerlikon guns on the bridge wings. Those ships assigned to convoy duty were armed with two depth charge launchers and four chutes to deploy their 40 depth charges. "Red Deer" was equipped with LL and SA minesweeping gear to counter magnetic and acoustic naval mines.