Anodized Upper Receiver

X15 Striped Upper Receiver

450/458 Stripped Upper Receiver

Stripped Side Charged Receiver

Slick Side Upper Receiver

X15 FDE Striped Upper Receiver

223/5.56/Blackout Side Charged Receiver

7.63x39 Side Charged Receiver

6.8 SPC Side Charged Receiver

Non-Recpricating Side Charged Receiver

6.5 Grendel Side Charged Receiver