The MP5 - A timeline of innovation · 1964–1992

1964

The Beginning — MP64

Development begins under the type designation MP64. The first test sample is manufactured on the basis of sketches.

1965

The HK54

Sets of technical drawings are completed. The project is now designated HK54.

1966

Official Adoption

Decision to introduce the MP5 as the standard weapon of the German police, Federal German Border Guard and later the customs authorities.

1971

Introduction of the MP5A2

The recoil spring tube is shortened by 80 mm and the support is lengthened correspondingly.

1972

Swiss Procurement

Switzerland decides to procure the MP5 for nearly all cantons.

1973

Optics & Carrying Equipment

Supporting points for a telescope sight holder and carrying sling are introduced.

1974

Introduction of the MP5SD

The MP5SD variant is introduced.

1975

Cocking Lever Redesign

Introduction of a new, one-piece cocking lever.

1976

MP5K & Curved Magazines

Introduction of a new curved magazine for 15 or 30 rounds, alongside the new MP5K variant.

1977

Export Finish

Introduction of a coating for export weapons.

1978

Trapezoid Handguard

Introduction of a new trapezoid-shaped handguard.

1982

Burst Limiter

Introduction of a burst limiter.

1984

MP5-PT & US Navy Variants

Introduction of the MP5-PT with a floating cartridge chamber, as well as MP5 variations for the US Navy.

1988

MP5 Maritime

Introduction of the seawater-resistant MP5-Maritime, featuring a cartridge chamber with 16 relief grooves.

1989

HK89 & Retractable Stock

Introduction of the HK89 with an MP5K special handguard. The EF is modified, along with the retractable buttstock.

1990

Additional Safety

Introduction of an additional safety for the NRW.

1991

Internal Component Modifications

Bolt face inlet for the bolt head and ejector modified due to action ammunition. Roller holder modified; wire type.

1992

New Calibers

Introduction of the MP5 in 10 mm Auto and .40 S&W, featuring a bolt catch.