Wilson Combat TRBCA 5.56 Bolt Carrier Assembly
Precision-machined Wilson Combat bolt carrier for 5.56 NATO AR rifles. Full-auto profile with tool steel extractor, shot-peened Carpenter 158 steel, and high-pressure tested for reliability.
Wilson Combat TRBCA Bolt Carrier Assembly
The Wilson Combat TRBCA is a precision-engineered bolt carrier designed for shooters who demand reliability and performance from their 5.56 NATO AR-platform rifles.
Construction & Materials
Precision Manufacturing: Machined from Carpenter 158 steel and shot-peened to increase strength and durability. Each carrier is randomly batch high-pressure tested (HPT) to ensure it meets Wilson Combat's exacting standards.
Complete Assembly: Includes a tool steel extractor, ejector, and appropriate extractor spring—everything you need for a drop-in installation.
Full-Auto Profile Design
This full-auto carrier is slightly heavier than its semi-auto counterpart, providing additional mass that lowers cyclic rate. This design benefits:
- Carbine-length and short-barreled rifles
- Suppressed rifles
- Shorter gas systems
- Machine gun applications
Installation & Compatibility
The TRBCA features a drop-in fit for any quality 5.56 case head-based AR rifle. No gunsmithing required—simply install and go.
A Note on Carrier Types
While the full-auto and semi-auto carriers differ in weight and external profile, they are functionally interchangeable. Choose based on your rifle's gas system length and intended use. The full-auto profile excels in shorter systems and suppressed applications.
