Police Service of Northern Ireland (PSNI) officers and detectives carry the Glock 17 as their standard issue sidearm, including DSI Stella Gibson (Gillian Anderson), DC Glenn Martin (Emmett Scanlan) and PC Danielle Ferrington (Niamh McGrady). In a continuity error, the Walther P99 stolen from PC Brian Stone (Gerard Jones) by James Tyler (Brian Milligan) turns into a Glock when he breaks into a womens refuge centre.
DSI Stella Gibson (Gillian Anderson) is briefly seen handling a Walther P99 during a dream sequence. In various continuity errors, PC Danielle Ferrington (Niamh McGrady) and PC Brian Stone (Gerard Jones)'s Glock 17 sidearms are replaced with P99's. The P99 stolen by James Tyler (Brian Mulligan) changes to a Glock 17 and back to a P99 in various continuity errors.
Bill Nash (Chris Corrigan), a friend of James Tyler (Brian Milligan), threatens Paul Spector (Jamie Dornan) with a Umarex GPDA blank firing pistol whilst trying to help Tyler ascertain the whereabouts of his estranged wife. It is likely a stand in for a Browning BDA.
