| Album Version (5:29) |  |
| Available on commercial CD / DVD releases |
| 5:35 | | Ultra | CDSTUMM148 | UK | Promo | CD-R | 1 | |
| 5:35 | | Ultra | 2-46522 | USA | Promo | CD-R | 1 | |
| Album Version | | | Ultra | No Cat # | GER | Promo | MC | 1 | |
| | | Ultra | Stumm148 | MEX | | LP | 1 | A |
| 5:35 | | Ultra | 2-46522-AB | USA | Promo | CD | 1 | |
| 5:35 | | Ultra | INT 893.247 | GER | Promo | CD | 1 | |
| 5:35 | | Ultra | PCDStumm148 | UK | Promo | CD | 1 | |
| | | Ultra | INT 4 84456 4 | GER | | MC | 1 | A |
| | | Ultra | C STUMM 148 | MAL | | MC | 1 | A |
| | | Ultra | C Stumm 148 | ITA | | MC | 1 | A |
| | | Ultra | MC STUMM 148 | TR | | MC | 1 | A |
| | | Ultra | 6165-4 | ARG | | MC | 1 | A |
| | | Ultra | 74321479964 | POL | | MC | 1 | A |
| | | Ultra | M-4434-1997 | SPAIN | | MC | 1 | A |
| | | Ultra | 74321-47852-4 | ARG | | MC | 1 | A |
| | | Ultra | CStumm148 | UK | | MC | 1 | A |
| | | Ultra | ML 465224 | MEX | | MC | 1 | A |
| | | Ultra | 06015102244 | CO | | MC | 1 | A |
| 5:35 | | Ultra | DMCD9 | EU | | SACD | 1 | A |
| 5:35 | | Ultra | DMCD9 | EU | | SACD | 1 | B |
| | | Ultra | KOF 4 13467 | CHI | | MC | 1 | A |
| 5:35 | | Ultra | MED-174 | TW | | CD | 1 | |
| 5:35 | | Ultra | CDSTUMM148 | EST | | CD | 1 | |
| 5:35 | | Ultra | CX465222 | MEX | | CD | 1 | |
| 5:35 | | Ultra | CDSTUMM148 | HUN | | CD | 1 | |
| 5:35 | | Ultra | CDStumm148RUS | RUS | | CD | 1 | |
| 5:35 | | Ultra | 011664-2 | ARG | | CD | 1 | |
| 5:35 | | Ultra | 6165-2 | ARG | | CD | 1 | |
| 5:35 | | Ultra | INT 4 84456 2 | GER | | CD | 1 | |
| 5:35 | | Ultra | 6165-2 | BRA | | CD | 1 | |
| 5:35 | | Ultra | 1309058-1 | BRA | | CD | 1 | |
| 5:35 | | Ultra | CDW 46522 | CAN | | CD | 1 | |
| 5:35 | | Ultra | 74321-47852-2 | ARG | | CD | 1 | |
| 5:35 | | Ultra | CD-938 | CHI | | CD | 1 | |
| 5:35 | | Ultra | CDSTUMM148 | SPAIN | | CD | 1 | |
| 5:35 | | Ultra | RSDStumm148 | SI | | CD | 1 | |
| 5:35 | | Ultra | 724384402020 | FRA | | CD | 1 | |
| 5:35 | | Ultra | 391.0148.20 | BENELUX | | CD | 1 | |
| 5:35 | | Ultra | CDStumm148 | SCAN | | CD | 1 | |
| 5:35 | | Ultra | ROD9039 | HK | | CD | 1 | |
| 5:35 | | Ultra | TOCP-50158 | JAPAN | | CD | 1 | |
| 5:35 | | Ultra | D118371 | USA | | CD | 1 | |
| 5:35 | | Ultra | 9 46522-2 | USA | | CD | 1 | |
| 5:35 | | Ultra | CDStumm148 | UK | | CD | 1 | |
| | | Ultra | INT 4 84456 | GER | | LP | 1 | A |
| | | Ultra | Stumm148 | UK | | LP | 1 | A |
| | | Ultra | DMLP9 | EU | | LP | 1 | A |
| | | The Singles 86>98 | PLP5 | UK | | LP | 2 | B |
| 5:29 | | The Singles 86>98 | 2-47110-AB | USA | Promo | 2xCD | 15 | |
| 5:29 | | The Singles 86>98 | PBXCDMuteL5 | UK | Promo | 2xCD | 15 | |
| 5:29 | | The Singles 86>98 | 07243 846537 2 9 | SI | | Box | 15 | |
| 5:29 | | The Singles 86>98 | ACDMuteL5 | UK | Promo | 2xCD | 15 | |
| 5:29 | | The Singles 86>98 | C MUTE L5 | POL | | MC | 15 | |
| 5:29 | | The Singles 86>98 | MDMuteL5 | UK | | 2xMD | 15 | |
| 5:29 | | The Singles 86>98 | INT 4 84573 4 | GER | | MC | 15 | |
| 5:29 | | The Singles 86>98 | 6212-4 | ARG | | MC | 15 | |
| 5:29 | | The Singles 86>98 | CMuteL5 | UK | | MC | 15 | |
| 5:29 | | The Singles 86>98 | CMUTEL 5 | MAL | | 2xMC | 15 | B |
| 5:29 | | The Singles 86>98 | TOCP-53237 | JAPAN | | 2xCD | 15 | |
| 5:29 | | The Singles 86>98 | ROD 9132 | HK | | 2xCD | 15 | |
| 5:29 | | The Singles 86>98 | 6212-2 | ARG | | 2xCD | 15 | |
| 5:29 | | The Singles 86>98 | 6212-2 | BRA | | 2xCD | 15 | |
| 5:29 | | The Singles 86>98 | MED-285 | TW | | 2xCD | 15 | |
| 5:29 | | The Singles 86>98 | CDMUT2036Q | SA | | 2xCD | 15 | |
| 5:29 | | The Singles 86>98 | CDMUTEL5 | SPAIN | | 2xCD | 15 | |
| 5:29 | | The Singles 86>98 | 9 47110-2 | USA | | 2xCD | 15 | |
| 5:29 | | The Singles 86>98 | 724384653729 | FRA | | 2xCD | 15 | |
| 5:29 | | The Singles 86>98 | CDMuteL5 | CS | | 2xCD | 15 | |
| 5:29 | | The Singles 86>98 | CDMuteL5 | SCAN | | 2xCD | 15 | |
| 5:29 | | The Singles 86>98 | 391.2005.23 | BENELUX | | 2xCD | 15 | |
| 5:29 | | The Singles 86>98 | INT 4 84573 2 | GER | | 2xCD | 15 | |
| 5:29 | | The Singles 86>98 | CDMuteL5 | UK | | 2xCD | 15 | |
| 5:29 | | The Singles 86>98 | LMuteL5 | UK | | 3xLP | 3 | D |
| 5:29 | | The Singles 86>98 | 72438457615 | GER | | 3xLP | 3 | D |
| 5:29 | | The Singles 86>98 | MuteL5 | UK | | 3xLP | 3 | D |
| 5:31 | | Barrel Of A Gun | No Cat # | UK | Promo | MC | 1 | |
| Single Version | 5:59 | | Barrel Of A Gun | No Cat # | UK | Promo | CD-R | 2 | |
| 5:29 | | Barrel Of A Gun | CD/LCDBong25 | UK | Promo | DAT | 1 | |
| 5:29 | | Barrel Of A Gun | CD/LCDBong25 | UK | Promo | MC | 1 | |
| Album Version | 5:31 | | Barrel Of A Gun | No Cat. # | USA | Promo | CD | 2 | |
| 5:29 | | Barrel Of A Gun | No Cat. # | GER | Promo | MC | 1 | |
| Album Version | 5:29 | | Barrel Of A Gun | PRO-CD-8600 | USA | Promo | CD | 2 | |
| Original Mix | 5:29 | | Barrel Of A Gun | PRO-A-8600 | USA | Promo | 2x12" | 2 | D |
| Original Mix | | | Barrel Of A Gun | PL12Bong25 | UK | Promo | 12" | 2 | B |
| Original Mix | | | Barrel Of A Gun | P12Bong25 | UK | Promo | 12" | 1 | B |
| Original Mix | | | Barrel Of A Gun | PL12Bong25 | UK | Promo | 12" | 2 | B |
| Original Mix | | | Barrel Of A Gun | P12Bong25 | UK | Promo | 12" | 1 | B |
| Single Version | 5:29 | | Barrel Of A Gun | INT 893.239 | GER | Promo | CD | 2 | |
| Single Version | 5:29 | | Barrel Of A Gun | RCDBong25 | UK | Promo | CD | 2 | |
| 5:29 | | Barrel Of A Gun | KOD 4 13260 | CHILE | | MC | 1 | A |
| | | Barrel Of A Gun | 181/F | POL | | MC | 1 | |
| 5:31 | | Barrel Of A Gun | CDSMUT10 | SA | | CD | 1 | |
| 5:29 | | Barrel Of A Gun | CDBong25X | EU | | CD | 1 | |
| 5:31 | | Barrel Of A Gun | 2050-2 | BRA | | CD | 1 | |
| 5:28 | | Barrel Of A Gun | TOCP-50225 | JAPAN | | CD | 1 | |
| Single Version | 5:29 | | Barrel Of A Gun | CD43828 | CAN | | CD | 1 | |
| Single Version | 5:29 | | Barrel Of A Gun | 43828-2 | USA | | CD | 1 | |
| 5:29 | | Barrel Of A Gun | 2-17409 | USA | | CD | 1 | |
| Album Version | | | Barrel Of A Gun | 17409-4 | USA | | MC | 1 | A |
| 5:29 | | Barrel Of A Gun | 0-43828 | USA | | 12" | 1 | A |
| 5:31 | | Barrel Of A Gun | MES-016 | TW | | CD | 1 | |
| 5:31 | | Barrel Of A Gun | 391.1025.22 | BENELUX | | CD | 1 | |
| 5:31 | | Barrel Of A Gun | CDBONG25 | HUN | | CD | 1 | |
| 5:31 | | Barrel Of A Gun | 724389405729 | FRA | | CD | 1 | |
| 5:31 | | Barrel Of A Gun | CDBong25 | SCAN | | CD | 1 | |
| 5:31 | | Barrel Of A Gun | D1559 | AUS | | CD | 1 | |
| 5:31 | | Barrel Of A Gun | INT 829.104 | GER | | CD | 1 | |
| 5:31 | | Barrel Of A Gun | CDBong25 | UK | | CD | 1 | |
| | | Barrel Of A Gun | INT 129.104 | GER | | 12" | 1 | A |
| | | Barrel Of A Gun | 12Bong25 | UK | | 12" | 1 | A |
| 5:31 | | Barrel Of A Gun | 391.1025.24 | BENELUX | | CD | 1 | |
| 5:29 | | Barrel Of A Gun | 8940772 | FRA | | CD | 1 | |
| 5:29 | | Barrel Of A Gun | 7-17409 | USA | | 7" | 1 | A |
| Album Version | 5:31 | | WFM 96.9 | PCD1087 | MEX | Promo | CD | 2 | |
| 5:29 | | Sampler Janvier 97 | Visa003896 | FRA | Promo | CD | 1 | |
| 5:29 | | Mute in Rockdelux | SM-022 | SPAIN | Promo | CD | 1 | |
| 5:29 | | HOWL | PRO-CD-8722 | USA | | CD | 4 | |
| Album Version | 5:29 | | Singles Box Set 6 - DMBX6 | iDMBOX1 | UK | | AAC | 1 | |
| 5:29 | | The Singles 86>98 | iDMBOX1 | UK | | AAC | 15 | |
| 5:35 | | Ultra | iDMBOX1 | UK | | AAC | 1 | |
| Instrumental (5:30) | |
Not available on commercial CD / DVD releases
Only available on promos
Only available on CD-R format |
| Instrumental | 5:30 | | Barrel Of A Gun | No Cat # | UK | Promo | CD-R | 1 | |
| Live 1997-04-10 Adrenalin Village (6:02) | |
| Available on commercial CD / DVD releases |
| Live 1997-04-10 Adrenalin Village | | | Ultra | VISA 4214 | FRA | Promo | CD | 1 | |
| Live 1997-04-10 Adrenalin Village | | | Ultra | DMCD9 | EU | | SACD | 13 | B |
| Live | 6:02 | | Home | CD/LCDBong27 | UK | Promo | MC | 3 | B |
| Live | 6:00 | | Home | Bong27 | UK | Promo | MC | 5 | B |
| Live 1997-04-10 Adrenalin Village | 6:02 | | Home | CDBong27X | EU | | CD | 7 | |
| Live | 6:02 | | Home | ROD 9050 | HK | | CD | 3 | |
| Live | 6:02 | | Home | TOCP-50277 | JAPAN | | CD | 7 | |
| Live | 6:02 | | Home | 724389437027 | FRA | | CD | 3 | |
| Live | 6:02 | | Home | LCDBong27 | ITA | | CD | 3 | |
| Live | 6:02 | | Home | LCDBong27 | SCAN | | CD | 3 | |
| Live | 6:02 | | Home | INT 8 84198 2 | GER | | CD | 3 | |
| Live | 6:02 | | Home | 391.1027.27 | BENELUX | | CD | 3 | |
| Live | 6:02 | | Home | LCDBong27 | UK | | CD | 3 | |
| Live 1997-04-10 Adrenalin Village | 6:02 | | Singles Box Set 6 - DMBX6 | iDMBOX1 | UK | | AAC | 24 | |
| One Inch Punch Mix (5:25) | |
| Remixed by One Inch Punch |
| Available on commercial CD / DVD releases |
| One Inch Punch Mix | 5:25 | | Barrel Of A Gun | CD/LCDBong25 | UK | Promo | DAT | 4 | |
| One Inch Punch Mix | 5:25 | | Barrel Of A Gun | CD/LCDBong25 | UK | Promo | MC | 4 | |
| One Inch Punch Mix | 5:25 | | Barrel Of A Gun | No Cat. # | GER | Promo | MC | 4 | |
| One Inch Punch Mix | 5:25 | | Barrel Of A Gun | KOD 4 13260 | CHILE | | MC | 2 | B |
| One Inch Punch Mix | | | Barrel Of A Gun | 181/F | POL | | MC | 4 | |
| One Inch Punch Mix | 5:25 | | Barrel Of A Gun | CDSMUT10 | SA | | CD | 4 | |
| One Inch Punch Mix | 5:25 | | Barrel Of A Gun | CDBong25X | EU | | CD | 4 | |
| One Inch Punch Mix | 5:25 | | Barrel Of A Gun | 2050-2 | BRA | | CD | 4 | |
| One Inch Punch Mix | 5:24 | | Barrel Of A Gun | TOCP-50225 | JAPAN | | CD | 4 | |
| One Inch Punch Mix | | | Barrel Of A Gun | L12Bong25 | UK | | 12" | 1 | B |
| One Inch Punch Mix | 5:25 | | Barrel Of A Gun | 391.1025.22 | BENELUX | | CD | 4 | |
| One Inch Punch Mix | 5:25 | | Barrel Of A Gun | CDBONG25 | HUN | | CD | 4 | |
| One Inch Punch Mix | 5:25 | | Barrel Of A Gun | 724389405729 | FRA | | CD | 4 | |
| One Inch Punch Mix | 5:25 | | Barrel Of A Gun | CDBong25 | SCAN | | CD | 4 | |
| One Inch Punch Mix | 5:25 | | Barrel Of A Gun | D1559 | AUS | | CD | 4 | |
| One Inch Punch Mix | 5:25 | | Barrel Of A Gun | INT 829.104 | GER | | CD | 4 | |
| One Inch Punch Mix | 5:25 | | Barrel Of A Gun | CDBong25 | UK | | CD | 4 | |
| One Inch Punch Mix | 5:25 | | Singles Box Set 6 - DMBX6 | iDMBOX1 | UK | | AAC | 4 | |
| One Inch Punch Mix V2 (5:28) | |
| Remixed by One Inch Punch |
| Available on commercial CD / DVD releases |
| One Inch Punch Mix (V2) | 5:28 | | Barrel Of A Gun | PRO-A-8600 | USA | Promo | 2x12" | 1 | C |
| One Inch Punch Mix (V2) | | | Barrel Of A Gun | PL12Bong25 | UK | Promo | 12" | 1 | A |
| One Inch Punch Mix (V2) | | | Barrel Of A Gun | PL12Bong25 | UK | Promo | 12" | 1 | A |
| One Inch Punch Mix V2 | 5:28 | | Barrel Of A Gun | CDBong25X | EU | | CD | 9 | |
| One Inch Punch Mix | 5:25 | | Barrel Of A Gun | CD43828 | CAN | | CD | 4 | |
| One Inch Punch Mix | 5:25 | | Barrel Of A Gun | 43828-2 | USA | | CD | 4 | |
| One Inch Punch Mix V2 | 5:28 | | Barrel Of A Gun | 0-43828 | USA | | 12" | 2 | B |
| One Inch Punch Mix | 5:28 | | Barrel Of A Gun | MES-016 | TW | | CD | 4 | |
| One Inch Punch Mix (V2) | | | Barrel Of A Gun | INT 129.104 | GER | | 12" | 2 | B |
| One Inch Punch Mix (V2) | | | Barrel Of A Gun | 12Bong25 | UK | | 12" | 2 | B |
| One Inch Punch Mix V2 | 5:28 | | Singles Box Set 6 - DMBX6 | iDMBOX1 | UK | | AAC | 9 | |
| Radio Version (4:01) | |
Not available on commercial CD / DVD releases
Only available on promos
Notes:
A radio edit of the Album version. 5 sections of the song are removed: The first 18 seconds are chopped, then there's a 10 seconds fade in. Also removed is (approx): 0:51-1:00; 1:41-1:46; 1:55-2:01; 2:26-2:35. Fade out 4:29-4:45. |
| Radio Version | 3:59 | | Barrel Of A Gun | No Cat # | UK | Promo | CD-R | 1 | |
| Edit | 4:01 | | Barrel Of A Gun | No Cat. # | USA | Promo | CD | 1 | |
| Edit | 4:01 | | Barrel Of A Gun | PRO-CD-8600 | USA | Promo | CD | 1 | |
| Radio Version | 4:01 | | Barrel Of A Gun | DM001 | ARG | Promo | CD | 1 | |
| Radio Version | 3:59 | | Barrel Of A Gun | INT 893.239 | GER | Promo | CD | 1 | |
| Radio Version | 3:59 | | Barrel Of A Gun | RCDBong25 | UK | Promo | CD | 1 | |
| Underworld Hard Instrumental (9:13) | |
| Remixed by Underworld |
Available on commercial CD / DVD releases
Notes:
This is not simply an instrumental version version of Underworld Hard Mix. It is remixed. Some instrumental sounds are missing here; on the other hand it has a few vocal samples. |
| Underworld Hard Mix | 9:13 | | The Remixes 86>98 | P12MuteL5 | UK | Promo | 3xLP | 1 | E |
| Underworld Hard Mix | 9:11 | | The Remixes 86>98 ep | Tribe1 | ITA | | CD | 6 | |
| Underworld Hard Mix | 9:13 | | The Remixes 86>98 | 6219-2 | ARG | | CD | 9 | |
| Underworld Hard Mix | 9:13 | | The Remixes 86>98 | PCDMuteL5 | UK | Promo | CD | 9 | |
| Underworld Hard Mix | 9:13 | | The Remixes 86>98 | P12MuteL5 | UK | Promo | 3xLP | 1 | E |
| Underworld Hard Instrumental | 9:11 | | Barrel Of A Gun | PRO-A-8600 | USA | Promo | 2x12" | 2 | B |
| Underworld Hard Instrumental | 9:13 | | Barrel Of A Gun | P12Bong25 | UK | Promo | 12" | 2 | B |
| Underworld Hard Instrumental | 9:13 | | Barrel Of A Gun | P12Bong25 | UK | Promo | 12" | 2 | B |
| Underworld Hard Mix (9:37) | |
| Remixed by Underworld |
| Available on commercial CD / DVD releases |
| Underworld Hard Mix | 9:37 | | | No Cat # | UK | Promo | CD-R | 9 | |
| Underworld Hard Mix | 9:37 | | Remixes 81-04 | No cat # | UK | Promo | 3xCD-R | 8 | A |
| Underworld Hard Mix | 9:37 | | Remixes 81-04 | No cat # | USA | Promo | 2xCD-R | 8 | A |
| Underworld Hard Mix | 9:37 | | Remixes 81-04 | No cat # | USA | Promo | 2xCD-R | 8 | A |
| Underworld Hard Mix | 9:37 | | Remixes 81-04 | No cat # | USA | Promo | CD-R | 3 | |
| Underworld Hard Mix | 9:37 | | Remixes 81-04 | 2A-48781-A | USA | Promo | CD | 3 | |
| Underworld Hard Mix | 9:37 | | Remixes 81···04 | ACDMUTEL8 | EU | Promo | 3xCD | 8 | A |
| Underworld Hard Mix | 9:37 | | Remixes 81·04 | 07243563290 2 7 | RUS | | CD | 3 | |
| Underworld Hard Mix | 9:37 | | Remixes 81-04 | VJCP 68706-08 | JAPAN | | 3xCD | 8 | A |
| Underworld Hard Mix | 9:37 | | Remixes 81-04 | CDW48790 | CAN | | 3xCD | 8 | A |
| Underworld Hard Mix | 9:37 | | Remixes 81-04 | CDW48781 | CAN | | CD | 3 | |
| Underworld Hard Mix | 9:37 | | Remixes 81-04 | 48790-2 | USA | | 3xCD | 8 | A |
| Underworld Hard Mix | 9:37 | | Remixes 81-04 | 48781-2 | USA | | CD | 3 | |
| Underworld Hard Mix | 9:37 | | Remixes 81-04 | 48989-2 | USA | | 2xCD | 8 | A |
| Underworld Hard Mix | 9:37 | | Remixes 81···04 | XLCDMUTEL8 | EU | | 3xCD | 8 | A |
| Underworld Hard Mix | 9:37 | | Remixes 81-04 | CDMULTEL8 | THAI | | 2xCD | 8 | A |
| Underworld Hard Mix | 9:37 | | Remixes 81-04 | LCDMUTEL8 | ARG | | CD | 3 | |
| Underworld Hard Mix | 9:37 | | Remixes 81·04 | LCDMUTEL8 | EU | | CD | 3 | |
| Underworld Hard Mix | 9:37 | | Remixes 81··04 | CDMUTEL8 | EU | | 2xCD | 8 | A |
| Underworld Hard Mix | 9:37 | | Remixes 81····04 | MUTEL8 | EU | | 6xLP | 3 | C |
| Underworld Hard Mix | 9:36 | | Barrel Of A Gun | CD/LCDBong25 | UK | Promo | DAT | 5 | |
| Underworld Hard Mix | 9:36 | | Barrel Of A Gun | CD/LCDBong25 | UK | Promo | MC | 5 | |
| Underworld Hard Mix | 9:36 | | Barrel Of A Gun | No Cat. # | GER | Promo | MC | 5 | |
| Underworld Hard Mix | 9:36 | | Barrel Of A Gun | PRO-A-8600 | USA | Promo | 2x12" | 1 | A |
| Underworld Hard Mix | | | Barrel Of A Gun | P12Bong25 | UK | Promo | 12" | 1 | A |
| Underworld Hard Mix | | | Barrel Of A Gun | P12Bong25 | UK | Promo | 12" | 1 | A |
| Underworld Hard Mix | 9:37 | | Barrel Of A Gun | CDBong25X | EU | | CD | 5 | |
| Underworld Hard Mix | 9:37 | | Barrel Of A Gun | ROD 9035 | HK | | CD | 1 | |
| Underworld Hard Mix | 9:36 | | Barrel Of A Gun | TOCP-50225 | JAPAN | | CD | 5 | |
| Underworld Hard Mix | 9:37 | | Barrel Of A Gun | LCDBONG25 | ITA | | CD | 1 | |
| Underworld Hard Mix | 9:37 | | Barrel Of A Gun | LCDBONG25 | HUN | | CD | 1 | |
| Underworld Hard Mix | 9:36 | | Barrel Of A Gun | CD43828 | CAN | | CD | 5 | |
| Underworld Hard Mix | 9:37 | | Barrel Of A Gun | 724389408324 | FRA | | CD | 1 | |
| Underworld Hard Mix | 9:36 | | Barrel Of A Gun | 43828-2 | USA | | CD | 5 | |
| Underworld Hard Mix | 9:37 | | Barrel Of A Gun | 391.1025.27 | BENELUX | | CD | 1 | |
| Underworld Hard Mix | 9:37 | | Barrel Of A Gun | LCDBong25 | SCAN | | CD | 1 | |
| Underworld Hard Mix | 9:37 | | Barrel Of A Gun | INT 829.105 | GER | | CD | 1 | |
| Underworld Hard Mix | 9:37 | | Barrel Of A Gun | LCDBong25 | UK | | CD | 1 | |
| Underworld Hard Mix | 9:37 | | Barrel Of A Gun | D1560 | AUS | | CD | 1 | |
| Underworld Hard Mix | 9:37 | | Barrel Of A Gun | 0-43828 | USA | | 12" | 2 | A |
| Underworld Hard Mix | 9:37 | | Barrel Of A Gun | MES-016 | TW | | CD | 5 | |
| Underworld Hard Mix | | | Barrel Of A Gun | INT 129.104 | GER | | 12" | 2 | A |
| Underworld Hard Mix | | | Barrel Of A Gun | 12Bong25 | UK | | 12" | 2 | A |
| Underworld Hard Mix | 9:36 | | Zoo Magazine no. 06 1997 | Zoo-06 | DK | Promo | CD | 9 | |
| Underworld Hard Mix | 9:37 | | Singles Box Set 6 - DMBX6 | iDMBOX1 | UK | | AAC | 5 | |
| Underworld Hard Mix | 9:37 | | The Remixes 81-04 | iDMBOX1 | UK | | AAC | 8 | |
| Underworld Soft Mix (6:29) | |
| Remixed by Underworld |
| Available on commercial CD / DVD releases |
| Underworld Soft Mix | 6:27 | | Barrel Of A Gun | CD/LCDBong25 | UK | Promo | DAT | 3 | |
| Underworld Soft Mix | 6:27 | | Barrel Of A Gun | CD/LCDBong25 | UK | Promo | MC | 3 | |
| Underworld Soft Mix | 6:27 | | Barrel Of A Gun | No Cat. # | GER | Promo | MC | 3 | |
| Underworld Soft Mix | 6:29 | | Barrel Of A Gun | DM001 | ARG | Promo | CD | 2 | |
| Underworld Soft Mix | 6:29 | | Barrel Of A Gun | KOD 4 13260 | CHILE | |
