The TROY A4 5.56 X-Series is a light-weight, purpose driven rifle that brings everything you need to the table, and nothing you don’t.

The A4 X-Series 16”  barrel is chambered in 223 Wylde with a 1:8 rifling twist. The TPRS 3-prong suppressor-compatible flash suppressor offers the exceptional flash mitigation you expect from a 3-prong muzzle device and accepts the TROY line of silencers.

We’ve equipped the TROY A4 5.56 with the ultra-lightweight 15.125” TROY X-Series rail. The front picatinny section comes standard with the legendary Troy M4 flip-up sight, and the remainder of the top rail is deleted to reduce weight. M-LOK® panels cover the surface so you can mount the attachments you need to fulfill your mission. The 3-, 6-, 9-, and 12-o’clock panels are knurled to increase positive control on the carbine during weapon manipulation. The X-Series locks to the A4’s mil-spec barrel nut with our innovative quad-lock system, so your rail mounted devices won’t shift zero.

The upper and lower on the A4 X-Series are each cut from a billet of 6061-T6 aluminum and mil-spec hard coat anodized. We’ve deleted the forward assist to reduce weight and snag areas, leaving the A4 X-Series a light-weight, honed platform. The TROY Pneuma Gas Diversion Charging Handle eliminates gas-to-face, even while shooting suppressed. And the best-in-industry B5 Bravo Stock ensures the A4 X-Series locks into your shoulder for improved accuracy and control during rapid shot strings.

Our Super Grade trigger group consists of a polished nickel Teflon hammer and trigger with TROY’s best-in-industry precision ground EDM cut S7 tool steel disconnector. The Super Grade trigger provides unquestionable dependability, positive reset, and clean, crisp release. And the Ergo Suregrip ensures your firing hand has the best grip and ergonomic placement for the most accurate shots possible. The included set of TROY’s legendary folding Battlesights ensure you have the toughest combat proven BUIS on the market so you can make the shot when it counts.

The TROY A4 5.56 X-Series is the sleek, lightweight, performance driven carbine you need to safeguard your life and others.

Additional information

Dimensions 16 in

SPC-A4 16″ X-Series

SKU#: SCAR-XA4-16BT-00


Customers must read Compliance Information before purchasing.


  • 16" Barrel

  • TROY 15.125" X-Series Rail

  • TROY M4 Front & Round Rear BattleSights

  • TROY Pneuma Charging Handle

  • B5 Stock

  • TROY Standard Safety

  • TPRS 3-Prong Flash Suppressor

  • Ergo Suregrip

  • TROY Super Grade Trigger Group


  • Caliber 5.56

  • Operating System Gas Operated

  • Firing Modes Safe/Semi Automatic

  • Length Extended 36" (91.44cm)

  • Length Collapsed 32.12" (81.60cm)

  • Barrel Length 16" (40.64cm)

  • Rifling 1:8 Twist Right Hand

  • Material Aircraft Grade 6061-T6 Aluminum