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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.
Wilson Combat M16 Bolt Carrier Assy 5.56 NATO Polished Nickel Boron
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Wilson Combat M16 Bolt Carrier Assy 5.56 NATO Polished Nickel Boron was the ninth most added bolt carrier group on GunPartPicker in August 2026, behind the PSA AR-15 Bolt Carrier Group 5.56 Full-Auto Nitride MPI - 516446953, with about 2% of all bolt carrier groups added to builds. Up from #12 in July. Builds with this bolt carrier group are mostly chambered in 5.56 NATO (88%), split between mid-length (44%) and carbine-length (41%) gas systems, and mostly AR-15 (85%, then AR-10 15%).
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 5 of the 6 retailers we track have it in stock. The best price drifted down from $216.95 to $178.49 over August 2026 without a real sale. Buying today, the lowest price is $178.49 at Ammunition Depot, which matches the best price we saw in August.
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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Wilson Combat M16 Bolt Carrier Assy 5.56 Nato Polished Nickel Boron
| Build | Parts | Total |
|---|---|---|
 | 25 | $1781.34 |
 | 7 | $1234.10 |
 | 11 | $1595.70 |
 | 18 | $2121.14 |
 | 23 | $2018.99 |
 | 22 | $1268.35 |
 | 17 | $993.66 |
 | 23 | $1839.20 |
 | 24 | $6527.69 |
 | 29 | $3774.21 |
 | 9 | $1195.11 |
 | 16 | $2512.33 |
2 global ratings
Top reviews
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.
