One Horse Upper Receivers

One Horse OH-15 Complete Upper 5.56 16 Barrel SOCOM Profile

One Horse OH-15 Complete Upper .300 AAC Blackout 16 Barrel SOCOM Profile

One Horse OH-15 A3 Stripped Upper Multi-Cal

One Horse OH-15 Complete Upper Black / Stainless 6mm ARC 18 Barrel

5.56 NATO COMPLETE UPPER RECEIVER W/HBAR MID-LENGTH BBL FOR AR15

One Horse AR15 Builder Set - Forged Upper, Forged Lower & 15 M-LOK Free Float Handguard

One Horse AR15 Black Upper & Lower Forged Receiver Set

One Horse OH-15 Complete Pistol Upper 5.56 10.5 Barrel CH/BCG

One Horse OH-15 Complete Pistol Upper .300 AAC Blackout 7.5 Barrel

One Horse OH-15 Complete Pistol Upper .300 AAC Blackout 10.5 Barrel CH BCG

One Horse OH-15 Complete Pistol Upper 5.56 7.5 Barrel CH BCG

ONE HORSE 7" M-LOK Handguard

ONE HORSE 10" M-LOK Handguard

ONE HORSE 15" M-LOK Handguard

ONE HORSE Upper Parts Kit (Dust Cover and Forward Assist)

One Horse Complete Upper 5.56 16 Barrel

ONE HORSE AR15 A3 Stripped Upper Receiver White