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Wilson Combat
Overview
The Wilson Combat M16 Bolt Carrier Assembly is designed specifically for the 5.56 NATO caliber, providing reliable function and durability in your AR-15 build. Featuring a polished black nitride finish, this M16-style bolt carrier enhances resistance to corrosion and wear while ensuring smooth cycling in your firearm. This component is frequently found in mid-length gas system builds, making it a solid choice for those looking to optimize performance and reliability in their setups.
Wilson Combat M16 Bolt Carrier Assy 5.56 NATO Polished Black Nitride
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Wilson Combat M16 Bolt Carrier Assy 5.56 NATO Polished Black Nitride was the fourth most added bolt carrier group on GunPartPicker in August 2026, behind the Cryptic Coatings 5.56 NATO AR-15 Bolt Carrier Group - Mystic Bronze, with about 7% of all bolt carrier groups added to builds. Down from #3 in May, June and July. Builds with this bolt carrier group are mostly chambered in 5.56 NATO (79%, then 300 Blackout 13%), split between mid-length (51%) and carbine-length (27%) gas systems, and mostly AR-15 (94%).
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 7 of the 8 retailers we track have it in stock. Prices barely moved in August 2026, holding around $150.49, so there haven't been real sales lately. Buying today, the lowest price is $150.49 at Ammunition Depot, which matches the best price we saw in August.
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Read the guide: The Most Trusted AR-15 BCGs →Check it against the live catalog:
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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 Blk Nitride
| Build | Parts | Total |
|---|---|---|
 | 15 | $1317.50 |
 | 12 | $1200.25 |
 | 30 | $6443.20 |
 | 15 | $4859.56 |
 | 15 | $4085.36 |
 | 10 | $824.93 |
 | 26 | $3306.84 |
 | 37 | $6594.72 |
 | 22 | $2965.31 |
 | 15 | $1364.26 |
| 15 | $2551.46 |
 | 23 | $1775.18 |
4 global ratings
Top reviews
Wilson Combats polished black nitride BCG has a mirror finish that cleans up easy with a rag. Gas key is staked from the factory. Bolt is shot peened and HPT/MPI tested. Beautiful piece thats also fully functional.
Wilson Combat nitride BCG is well made underneath but the finish is more glossy than the matte I expected from the photos. Function is excellent, properly staked gas key, HPT/MPI bolt. The polished look isn't for everyone but it cleans easy.
stays clean longer than my last one
smooth action
