TRIARC Systems Assembled Upper Receiver 10.5″ 5.56mm – Coyote Tan (HIR-235)
The TRIARC Systems 10.5″ 5.56 AR-15 Upper Receiver Group is a top-tier solution for close-quarters tactical performance and suppressed reliability. Designed around their acclaimed TRACK™ 2.0 CrMoV barrel, this upper delivers exceptional accuracy, rugged durability, and smooth cycling—all packed into a compact, highly maneuverable platform. Whether you’re assembling a patrol rifle, suppressor host, or defensive SBR, this upper offers uncompromising quality and modular flexibility.
Finished in Coyote Tan HIR-235 Cerakote, which offers visual camouflage and signature reduction under Gen 3 night vision, it’s built with real-world applications in mind.
10.5″ TRACK™ 2.0 BarrelCrMoV steel, straight-balanced contour, 1:7 twist
Inert Gas Heat Treated & Black Nitride FinishCorrosion-resistant and enhanced barrel life
NP3-Coated Barrel ExtensionSmoother cycling and reduced wear
TRILOK Wedge Lock Handguard9.5″ M-LOK rail with 7-sided mounting flexibility and extreme rigidity
Forged TSR-15S Upper ReceiverMil-Spec aluminum, tight tolerances for premium fit and function
Pinned TRIARC Low-Profile Gas BlockCarbine-length gas system ensures reliable cycling
Muzzle Threaded 5/8×24Ready for flash hider, muzzle brake, or suppressor mount
Coyote Tan FinishHIR-235, offers signature management andcamouflage against 3rd Generation Night Vision. This coating was engineered for LEO and Militaryapplications
Specifications
- Caliber: 5.56 NATO
- Barrel Length: 10.5″
- Twist Rate: 1:7
- Barrel Material: 4150V CrMoV (B-1159E Mil-Spec)
- Barrel Weight: 19.3 oz
- Barrel Treatment: Black Nitride
- Extension Coating: NP3
- Gas System: Carbine Length
- Gas Block Journal: .750″ diameter, 1″ length
- Gas Block: TRIARC Low-Profile, Pinned
- Muzzle Threads: 5/8×24
- Handguard: 9.5″ TRILOK Wedge Lock, 7-sided M-LOK
- Upper Receiver: TSR-15S Forged
- Finish: HIR-235 Cerakote (Coyote Tan)
*This complete upper receiver group is sold without a Bolt Carrier Group (BCG) or Charging Handle.
