This Upper Features:

- 11” Straight Flute Barrel
- 1:9 Twist Barrel
- 1/2-28RH Threading
- Thread Protector
- LAR Alexander Arms® Branded Hand Guard
- Lower Parts Kit
- Blowback Operating System
- Black Anodized Finish
- Two 10 round Magazines
- Weight is 3.25 lbs

This upper receiver assembly is intended for use with a registered SBR or class III lower receiver.