Adams Arms 5.56MM Piston Driven 16" Midlength Basic Upper
The FGAA-01060 Adams Arms Standard 5.56 Midlength Piston Upper. Piston systems are pinned on for ultimate reliability.
- Midlength Gas Piston System
- 16" Midlength Melonited Barrel
- Chambered in 5.56 NATO
- M4 Feed Ramps
- 1:7 Right Handed Twist
- M4 Style Handguard and Handguard Cap
- A2 Flash Hider
This is a complete upper which includes a bolt carrier group and charging handle.