Upper Receivers
Radian Weapons Upper Receivers
Billet uppers matched to the AX556 lower, with an integrated ejection port cover.
Current upper receivers
| Model | Type | Construction | Notable features |
|---|---|---|---|
| AX556 Upper | Stripped | Billet 7075-T6 | Matched to AX556 lower, integral port cover |
Line-up checked against the manufacturer's catalogue. Checked 2026-08-01