- True Precision
- TruGlo
- TulAmmo
- Tyrannical Targets
- Tyrant
- Unity Tactical
- US Government
- US Palm
- UTG
- Vector
- Velocity
- Venom
- Vertx
- VG6
- Viridian Weapon Technologies
- VISM
- VKTR
- VLTOR
- Vortex Optics
- VZ Grips
- Walker's
- Walther
- Wards
- Warne
- Warrior Systems
- Weatherby
- Weaver
- Wheeler
- Wilson Combat
- Winchester
- WMD
- Wolf Ammunition
- X-Force
- X-GRIP
- XS Sights
- Yankee Hill Machine Co
- Zaffiri Precision
- Zastava
- ZEV Technologies