The TROY A3 Defender 5.56 is our sleek, optic ready carbine that carries on TROY’s reputation for legendary reliability.

The A3 Defender’s mid-length barrel is chambered for 223 Wylde with a 1:8 rifling twist. It’s equipped with the TPRS Flash Hider (non-suppressor compatible) for exceptional flash mitigation.

Our slim, snag-free SOCC Rail gives you a rigid platform to mount essential M-LOK® accessories to fit your needs. The SOCC locks to the A3 Defender’s mil-spec steel barrel nut with our quad-lock system, so you don’t have to worry about your rail losing zero in the toughest environments.

The upper and lower on the A3 Defender are each cut from forged 7075 aluminum and mil-spec hard coat anodized.

We’ve attached the TROY Control Grip to increase comfort, ergonomics, and control during rifle manipulation. The sleek MFT Battlelink Minimalist Stock keeps the A3 light and increases weapon stability and shouldering speed with its angled rubber buttpad.

A mil-spec charging handle and fire control group ensures you can expect the utmost reliability with the TROY A3 Defender.

TROY products are gunfighter tough and proven in the line of duty over the last twenty years. Choose the forged TROY A3 Defender when you need the lightest weight carbine that doesn’t sacrifice reliability to safeguard your life and others.

Additional information

Dimensions 16 in

SPC-A3 16″ Defender – Forged

SKU#: SCAR-CA3-16BT-23


Customers must read Compliance Information before purchasing.


  • With Forward Assist

  • 16" Barrel

  • TROY SOCC 15.125" Rail

  • TROY Standard Safety

  • TROY A2 Flash Hider

  • TROY Standard Mil-Spec Trigger

  • TROY A2 Grip

  • Optic Ready


  • Caliber 5.56

  • Operating System Gas Operated

  • Firing Modes Safe/Semi Automatic

  • Length Extended 36" (91.44cm)

  • Length Collapsed 33.3" (84.55cm)

  • Barrel Length 16" (40.64cm)

  • Rifling 1:8 Twist Right Hand

  • Material 7075 Aluminum