TRIARC Systems TSR-15 .300 Blackout Upper Receiver Group 8.3" Barrel - OD Green Cerakote

TRIARC Systems TSR-15 .300 Blackout Upper Receiver Group 8.3" Barrel - OD Green Cerakote

Transform your custom pistol or short-barreled rifle build into a duty-grade tactical firearm with the TRIARC Systems TSR-15 .300 Blackout Upper Receiver Group. Purpose-built for suppressed engagements, high-volume performance, and compact maneuverability, this complete upper receiver assembly combines an 8.3-inch barrel with an ultra-durable, forged 7075 aluminum chassis. Coated in a protective Olive Drab (OD) Green Cerakote finish, it provides superior resistance against harsh weather, abrasion, and hard field use while establishing a striking, low-profile tactical aesthetic.

Precision-machined to tight Mil-Spec tolerances, this .300 Blackout upper receiver group incorporates the robust TRIARC INTERLOK handguard for rock-solid accessory attachment and tight rail alignment. At its core is a full-auto rated, NP3®-coated bolt carrier group with a shot-peened 9310 steel bolt and a Sprinco USA 5-coil enhanced extractor spring, ensuring slick, reliable cycling and maximum lockup strength. Threaded in 5/8x24 for seamless suppressor integration, the TSR-15 upper group delivers sub-MOA potential and match-grade dependability right out of the box.

Features

Forged 7075 Aluminum Construction:
Forged from high-strength 7075 aluminum to deliver exceptional structural integrity and lightweight weapon balance under heavy firing schedules.

Durable OD Green Cerakote Finish:
Finished in a premium Olive Drab (OD) Green Cerakote coating that provides outstanding scratch, wear, and chemical resistance in extreme operational environments.

Full-Auto Rated NP3® Bolt Carrier Group:
Includes an ultra-slick NP3®-coated BCG machined from case-hardened 8620 steel with a shot-peened 9310 steel bolt (8% stronger than Carpenter 158) for effortless cleaning and extended service life.

Sprinco USA Enhanced Extractor Spring:
Features a cryogenically treated 5-coil extractor spring from Sprinco USA paired with a billet 4140 extractor to guarantee positive, reliable casing ejection under extreme heat.

TRIARC INTERLOK Handguard System:
Utilizes TRIARC's rigid INTERLOK handguard to provide a stable, low-profile mounting platform for optics, lights, and aiming lasers without flexing under load.

Suppressor-Ready 5/8x24 Thread Pitch:
8.3-inch .300 Blackout barrel features a standard 5/8x24 muzzle thread pitch, allowing easy direct-thread mounting or quick-detach muzzle device installation for suppressors.

Specifications