The Troy A4 Complete Upper, 223 Rem/556NATO, 16 Barrel is a lightweight, ultra-low profile upper receiver designed for optimal maneuverability in close quarters. Developed specifically for war fighters and Law Enforcement, it features an M-Lok SOCC handguard and folding Battle Sights, all engineered from hardened aircraft aluminum with stainless steel components, and completed with a Mil-Spec hardcoat anodizing finish.
Specs
| Model No. | TRYSUPG-A4S-16BT-00 |
| Model | A4 Complete Upper |
| Manufacturer | Troy |
| Color | Black |
| Caliber | 223 Remington |
| Barrel Length | 16 |
