The MPT-55K represents Türkiye’s domestically developed 5.56 mm class infantry rifle solution, derived from the engineering experience gained through the MPT-76 program. The platform was designed to provide a lighter, more maneuverable alternative while maintaining NATO interoperability and combat durability standards.

Operational Purpose and Role

The primary role of the MPT-55K is to provide infantry personnel with effective firepower at short to medium engagement ranges. Its shortened barrel and compact configuration make it particularly suitable for:

• Urban warfare and close quarters battle (CQB)
• Mechanized infantry operations
• Vehicle-borne units
• Special operations forces

The 5.56 mm NATO cartridge offers manageable recoil, enabling rapid follow-up shots and improved controllability during automatic fire. This supports modern fire-and-maneuver infantry doctrine.

Doctrine and Concept of Use

Modern infantry doctrine emphasizes modularity, reduced weight, and high-volume suppressive fire. Within this framework, the MPT-55K functions as:

• A standard infantry rifle
• A compact carbine alternative
• A close-quarters combat weapon

With an effective range of approximately 400 meters, the rifle meets typical infantry engagement requirements. While the shorter barrel results in slightly reduced muzzle velocity compared to the standard MPT-55, it significantly enhances maneuverability in confined environments.

Platform Architecture

The MPT-55K incorporates the following architectural features:

• Gas piston operating system
• Rotating bolt locking mechanism
• Modular upper receiver with accessory rails
• Telescopic adjustable stock

The gas piston system improves reliability by reducing fouling in the receiver compared to direct impingement systems, particularly during sustained fire.

Accuracy and Fire Performance

According to publicly available data:

• Approx. 4 MOA dispersion
• Cyclic rate of 800 ± 100 rounds per minute
• Muzzle velocity approx. 800 m/s

A 4 MOA accuracy standard is consistent with military service rifle requirements for general infantry use.

Survivability and Durability

The rifle is designed to operate in harsh climatic and environmental conditions, including dust, mud, and temperature extremes. Detailed environmental qualification parameters are not fully disclosed in public sources.

System Integration

The MPT-55K is compatible with NATO-standard Picatinny (MIL-STD-1913) rail systems, allowing integration of:

• Optical sights
• Night vision devices
• Thermal optics
• Laser aiming modules
• Vertical foregrips and tactical accessories

Specific integration configurations depend on user requirements.

Advantages and Limitations Against Modern Threats

Advantages:

• Reduced recoil
• Compact dimensions
• NATO ammunition compatibility
• High modularity

Limitations:

• Reduced terminal energy at extended ranges due to short barrel
• 5.56 mm cartridge limitations against heavily armored targets

Variants

• MPT-55 (standard barrel)
• MPT-55K (short barrel variant)

Detailed block upgrades or export-specific configurations are limited in publicly available documentation.

Detailed Technical Specifications

Dimensions and Weight

• Weight: approx. 3,000 grams
• Length: 730 mm (stock collapsed) / 814 mm (stock extended)
• Barrel length: 279.4 mm

Operating System

• Gas piston driven
• Rotating bolt locking system
• 6-groove rifled barrel

Performance

• Caliber: 5.56x45 mm NATO
• Muzzle velocity: approx. 800 m/s
• Cyclic rate: 800 ± 100 rpm
• Effective range: 400 meters

Magazine and Fire Control

• 30-round magazine capacity
• Semi-automatic and fully automatic fire modes
• Trigger pull: 20–30 N

Sighting and Fire Control

The rifle is equipped with mechanical iron sights. Electronic fire-control systems are not integrated as standard. Optics are mission-configurable.

Electronic Warfare Resistance

As a mechanically operated firearm without integrated digital fire control electronics, it is not directly susceptible to electromagnetic jamming. However, attached electronic optics may vary depending on manufacturer specifications.

Logistics and Operation

• Compatible with NATO-standard ammunition
• Field-strippable for maintenance
• Operated by a single infantry soldier

Frequently Asked Questions

What is the MPT-55K used for?

• It is designed as a compact infantry rifle for close-quarters and urban combat operations while maintaining effective medium-range capability.

What is its effective range?

• Approximately 400 meters under standard operational conditions.

What ammunition does it use?

• 5.56x45 mm NATO ammunition, ensuring alliance interoperability and logistical compatibility.

Does the short barrel reduce performance?

• Yes. A shorter barrel reduces muzzle velocity and long-range ballistic performance but significantly improves maneuverability.

How does it differ from the MPT-55?

• The primary difference lies in barrel length and overall size. The MPT-55K is more compact and optimized for confined environments.

Can it be equipped with optics?

• Yes. The rifle supports Picatinny rail-mounted optics and tactical accessories.

Is it suitable for mechanized infantry?

• Yes. Its compact dimensions make it well suited for vehicle crews and mechanized units.

Sources

• Official product information from Makine ve Kimya Endüstrisi A.Ş.
• Publicly available technical brochures
• Defense industry publications and press releases