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Bear Creek Arsenal Bolt Carrier Group .223/5.56
Our Price: $99.00
Sale Price: $75.00
Savings: $24.00
In Stock

Bear Creek Arsenal Bolt Carrier Group comes MPI & HPT inspected. Perfect for your next 5.56/.223/.300BLK AR-15/M16 Build. The bolt is made from 9310 Steel and has been properly staked. Carrier is black nitride finish and bolt has a parkerized finish.
Fail Zero EXO Nickel Boron M16 Bolt Carrier Group - No Hammer
Our Price: $180.00
Sale Price: $139.00
Savings: $41.00
In Stock

A completely assembled, ready to install M16/4 Bolt and Carrier System. Kit includes six critical parts th at are treated with EXO Technology, a revolutionary surface technology that provides permanent dry lubricity, radically improves the performance of your M16/4 and eliminates the need to apply oil or grease to treated parts for the life of the weapon. All Fail Zero bolts are MPI tested and live fire tested. They do not do HPT, as they feel live fire is a better test.

Treated parts include:
- Bolt
- Bolt Carrier
- Extractor
- Cam Pin
- Carrier Key

WMD NiB-X Full Auto BCG - Polished
Our Price: $180.00
Sale Price: $169.00
Savings: $11.00
In Stock

NiB-X M16/AR-15 Full Auto Bolt Carrier Group - POLISHED All WMD BCG components are manufactured by Defense Industrial Base suppliers to WMD's exacting specifications to provide the best BCG available. Specifically engineered for NiB-X nickel boron coating to provide long life, high reliability and easy cleaning and maintenance. The BCG components are coated and polished to reduce fouling adherence. Coating is guaranteed for life against chipping, spalling or flaking. Over 30K rounds in Government protocol endurance testing did not wear the coating off. Especially beneficial in short barrel setups and suppressed platforms.


Bolt - Carpenter 158 heat-treated, shot-peened and magnetic particle inspected. Engineered from government drawings for NiB-X. Milspec gas rings. NiB-X coated (40% more wear-resistant than chrome).

Extractor - Manufactured, heat-treated, and hardened per government drawings. NiB-X coated.

Firing Pin - Manufactured, heat-treated, hardened, chromed and certified per Government drawings.

Carrier - M4/16 style full auto (heavier) functions in AR15 and M4/16 platforms, 8620 material, heat treated and case hardened. Manufacturing tolerances and surface finishes tightly controlled. NiB-X coated for durability and ease of cleaning.

Gas Key - Hardened to USGI specifications and attached using grade 8 hardened fasteners. Permatex No. 3D Aviation Form a gasket Type III Sealing Compound per MIL-S-45180 used on assembly. NiB-X coated. Staked per military specifications.

Cam Pin - Manufactured, heat treated, hardened and certified per government drawings. NiB-X Coated.