AIA-AR-5.56×45-Mk1-[BL]

AIA-AR-5.56×45-Mk1-[BL]

5.56×45 mm · Mk1

AIA-AR-5.56×45-Mk1-[BL]

A modular 5.56×45 mm rifle platform available in 11.5-inch, 14.5-inch and 16-inch barrel configurations. The system uses short-stroke gas-piston operation, a multi-position gas regulator and a quick-change barrel. The platform also supports conversion to .300 BLK.

The rifle features a monolithic upper receiver with an integral MIL-STD-1913 Picatinny rail, M-LOK interfaces at the 3, 6 and 9 o’clock positions, an adjustable telescopic stock and fully ambidextrous controls. The barrel is hammer-forged, chrome-lined and free-floating.

Technical data

Figures follow the current OEM technical data. Length labels are kept as published by the OEM.

CONFIGURATIONCALIBERRIFLINGBARRELTOTAL LENGTHTOTAL LENGTH EXTENDEDWEIGHTRATE OF FIRE
AIA-AR-5.56×45-Mk1-[BL] · 11.5"5.56×45 mm6 RH grooves
1:7" twist292 mm
(11.5")700 mm780 mm2.86 kg700–1100
AIA-AR-5.56×45-Mk1-[BL] · 14.5"5.56×45 mm6 RH grooves
1:7" twist368 mm
(14.5")777 mm857 mm2.95 kg700–1100
AIA-AR-5.56×45-Mk1-[BL] · 16"5.56×45 mm6 RH grooves
1:7" twist406 mm
(16")815 mm895 mm3.10 kg700–1100

Specification summary

ITEMSPECIFICATION
Caliber5.56×45 mm; the platform also supports .300 BLK conversion
Operating systemShort-stroke gas piston with a three-position regulator: regular, suppressed and extreme conditions
BarrelQuick-change, free-floating, hammer-forged and chrome-lined; 6 right-hand grooves; 1:7" twist
MagazineNATO / MIL-STD 5.56 steel, aluminum or polymer magazines
Controls and triggerAmbidextrous safety lever, magazine release, bolt catch and charging handle; two-stage trigger
Accessory interfacesIntegral MIL-STD-1913 upper rail; M-LOK interfaces at 3, 6 and 9 o’clock
StockAdjustable telescopic polymer stock

Platform features

Gas system

Three-position regulation

The regulator provides settings for regular operation, suppressed use and extreme conditions.

Receiver and handguard

Picatinny and M-LOK interfaces

Monolithic aluminum upper receiver with an integral Picatinny rail and M-LOK interfaces along the handguard.

Modular configuration

Three barrel lengths

Choose 11.5-inch, 14.5-inch or 16-inch 5.56×45 mm configurations. The platform also supports conversion to .300 BLK.

Controls and stock

Ambidextrous controls

Fully ambidextrous controls, a two-stage trigger and an adjustable telescopic polymer stock.

Barrel construction

Free-floating barrel

The OEM describes the barrel as free-floating, hammer-forged and chrome-lined, with a quick-change design.

Suppressor compatibility

Suppressor compatible

Suppressor compatibility is listed among the OEM platform features.

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Technical values and availability may change by configuration. Confirm final dimensions, compatibility and specifications against the applicable product configuration and contractual documentation.

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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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