SANTAN V2 BILLET UPPER RECEIVER FDE

San Tan Tactical PILLAR Lite Billet Upper Receiver

Wraithworks Billet Slick Side AR-15 Upper Receiver - Black | No Forward Assist or Brass Deflector

AERO PRECISION AR15 5.56 NATO / 223 Rem 20" Complete Upper Receiver w/ Carry Handle | Black

Geissele Automatics 5.56 USASOC Improved Complete Near-Clone AR-15 Upper Receiver - Desert Dirt- 10.3" - Open Box

TacFire Slick Side Billet Stripped Upper Receiver, Black

Radian Weapons Assembled AR-15 Upper Receiver - 15.5" - Radian Brown

Battle Arms Development WH556-URS-ODG Workhorse Upper Receiver Aluminum OD Green Anodized Receiver for AR15/M4