Wilson Combat TR-BCA Bolt Carrier Group Assembly, 223 Remington/556NATO, Fits AR-15, Magnesium Phosphate Finish, Black

Precision-engineered by top domestic Mil-Spec contractors, this bolt carrier group represents some of the finest 5.56 AR rifle components available, ensuring exceptional quality for custom rifle builds. Crafted from high-strength Carpenter 158 steel, the bolt is shot peened for added durability, and includes a robust tool steel extractor and ejector with the appropriate extractor spring for smooth operation. Each unit undergoes rigorous High Pressure Testing (HPT) in random batches, guaranteeing reliability under extreme conditions, while the extractor is made from 4140 gun-quality steel for superior strength. The 8620 steel carrier is externally and internally parkerized, chrome-lined, and equipped with a properly machined Mil-Spec gas key that is heat-treated, phosphated, and secured with Grade 8 fasteners for long-term gas system performance. Ideal as a spare parts kit for AR-15 enthusiasts, this assembly provides peace of mind with its precise machining, finishing, and hardening processes that promote consistent functionality and ease of maintenance. Backed by Wilson Combat's reputation for excellence, it's perfect for both professional builds and personal upgrades, offering shooters the reliability they need in demanding scenarios.

Features:

• Parkerized finish and internally chrome lined.
• Bolt material is Carpenter 158.
• Mil-Spec parts ensure a long service life.
• Machined ejector and extractor per mil specs.
• Drop in fit for any quality 5.56 case head based AR rifle.

Specifications:

• Type: Bolt Carrier Group
• Manufacturer Part: TR-BCA
• Model-2: 556NATO
• Color: Black
• Manufacturer: Wilson Combat
• Model: Bolt Carrier Group
• Sub Category: Bolts & Bolt Carrier Groups
• Finish: Manganese Phosphate