Chropi GP10 submachine gun

{{One source|date=July 2011}}

{{Infobox weapon

| name = Chropi GP10

| image = ChropiGP10.jpg

| caption = Chropi GP10 submachine gun (without magazine)

| origin = Greece

| type = Submachine gun

| is_ranged = yes

| service =

| used_by = Hellenic Army (not officially adopted)

| wars =

| designer = Sotiris Sofianopoulos (team leader)

| design_date = 1975

| manufacturer = Chropi (Chropei), Athens

| unit_cost =

| production_date =

| number = approximately 100

| variants =

| weight =

| length = 590 mm

| part_length = 335 mm

| cartridge = .45 ACP
9×19mm Parabellum

| caliber =

| action = Blowback

| rate =

| velocity =

| range =

| max_range =

| feed = 15- and 30- round magazine

| sights = Iron

}}

The Chropi GP10 was a submachine gun built by Chropi, Hropi ({{langx|el|ΧΡΩΠΕΙ}}) a Greek chemicals company, which used the "Chropi" spelling on its weapons. It was designed by a team under Sotiris Sofianopoulos (apparently{{citation needed|date=November 2015}} an original Greek-Cypriot design) and was proposed to the Greek Army in 1975. Initial positive performance results during tests were followed by a final rejection with dire consequences for the company, which had improved its existing infrastructure in order to mass-produce the weapon. About 100 units had been produced, which were delivered to the Greek state and ended up in Greek Army storage facilities.