AIA-AR-5.56×45-Mk1-[BL]

AIA-AR-5.56×45-Mk1-[BL]
AIA-AR-5.56×45-Mk1-[BL]
AIA-AR-5.56×45-Mk1-[BL]
AIA-AR-5.56×45-Mk1-[BL]

AIA-AR-5.56×45-Mk1-[BL]


5.56×45 mm NATO Infantry rifle
Long-stroke
5.56 mm rifle system

A 5.56×45 mm NATO infantry-rifle platform using a gas-operated,
rotating-bolt mechanism with a long-stroke piston. The standard configuration
combines semi- and fully automatic firing modes with a 457 mm barrel:
30-round adjustable-stock architecture.

5.56×45 mm NATO
Semi / full automatic
Long-stroke piston
457 mm barrel

Long-stroke 5.56 mm architecture

The published layout combines a gas-operated long-stroke piston, rotating bolt, cold-hammer-forged barrel, 30-round magazine and adjustable stock in one 5.56×45 mm NATO platform.

01

Gas-operated long-stroke piston

The operating system uses propellant gas to drive a long-stroke piston paired with a rotating bolt.

02

Semi- and fully automatic

The published fire-control configuration supports both semi-automatic and fully automatic operation.

03

Cold-hammer-forged barrel

The 457 mm (18-inch) barrel is specified as cold hammer forged with six grooves and a 1:7-inch twist.

04

Adjustable stock

An adjustable stock forms part of the standard published configuration and accompanies the 915 mm overall length.

Standard-length infantry configuration

Overall length is stated as 915 mm with a 457 mm barrel. Published system weight is 3,300 g.

The rifle is chambered for 5.56×45 mm NATO and uses a 30-round magazine. The barrel profile combines six grooves with a 1:7-inch twist.

Type5.56×45 mm NATO infantry-rifle platform
Calibre5.56×45 mm NATO
Operating principleGas operated
Bolt systemRotating bolt
Piston systemLong-stroke piston
Firing modesSemi-automatic / fully automatic
Groove count6
Twist rate1:7 in
Barrel manufactureCold hammer forged
Magazine capacity30 rounds
StockAdjustable
Barrel length457 mm (18 in)
Overall length915 mm (36 in)
Published weight3,300 g (7.25 lb)
ConfigurationStandard-length MAR platform

Licence-controlled firearm

Sale, possession, transfer, transport and use are permitted only in accordance with all applicable laws and regulations. This information never replaces the official manual, safety instructions or legal obligations. Specifications may vary by configuration and authorised ammunition type.

Technical Specifications

Specification Details
Operating Principle Gas piston operated, Short Stroke
Caliber 5.56×45 mm NATO & .223 Remington
Barrel Lengths 457 mm (18″), 406 mm (16″), 368 mm (14.5″), 292 mm (11.5″), 190 mm (7.5″)
Overall Length 915 mm (36″)
Weight 3,300 g (7.25 lbs)
Firing Mode Semi-automatic and Full-automatic
Twist Rate 6 RH, 1:7″
Barrel Type Cold Hammer Forged
Magazine Capacity 30 rounds
Stock Adjustable
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