Wilson Combat M16 BCG in polished nickel boron has had no issues at all. NiB coating cleans easily. Bolt is HPT/MPI tested. Gas key staked correctly from the factory. Premium quality BCG with the slick NiB finish.



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Wilson Combat
Overview
The Wilson Combat M16 Bolt Carrier Assembly is designed for the 5.56 NATO caliber, featuring a polished Nickel Boron finish that enhances durability and reduces friction during operation. This M16 style carrier provides smooth cycling and reliable performance, making it a solid choice for builds utilizing a carbine gas system. You’ll often find this component in 5.56 NATO builds that prioritize reliability and ease of maintenance.
Based on build data

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Aggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Aero Precision Ar-15 Breach Charging Handle Ambidextrous Small Levers | 17 | |
| Magpul AFG-2 Angled Fore Grip - Black | 14 | |
| Bravo Company Manufacturing 5.56 Nato Mid-Length Bhf Ar-15 Barreled Upper - Mcmr-15 - 16" | 14 | |
| Fortis SHIFT Vertical Grip - M-LOK | 12 | |
| Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green | 12 | |
| Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger | 11 |
| Platform | Percentage |
|---|---|
| AR-15 | 83.9% |
| AR-10 | 16.1% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 91.3% |
| .223 Wylde | 4.3% |
| 300 Blackout | 4.3% |
| Gas System | Percentage |
|---|---|
| Carbine | 50% |
| Mid-Length | 40.9% |
| Pistol | 9.1% |
Builds in the community that include the Wilson Combat M16 Bolt Carrier Assy 5.56 Nato Polished Nickel Boron
| Build | Parts | Total |
|---|---|---|
![]() | 25 | $1924.36 |
![]() | 7 | $1068.29 |
![]() | 11 | $1650.81 |
![]() | 18 | $2039.10 |
![]() | 23 | $1889.78 |
![]() | 22 | $1331.54 |
![]() | 17 | $951.21 |
![]() | 23 | $1906.10 |
![]() | 24 | $6501.74 |
| 29 | $3972.09 | |
![]() | 9 | $1128.19 |
| 16 | $2384.34 |
2 global ratings
Wilson Combat M16 BCG in polished nickel boron has had no issues at all. NiB coating cleans easily. Bolt is HPT/MPI tested. Gas key staked correctly from the factory. Premium quality BCG with the slick NiB finish.
Wilson Combat nickel boron BCG ran 500 rounds without a single failure during a class. Drops into a milspec upper with proper headspace. NiB coating cleans easily with a rag. Premium finish that wears well.