Wilson Combat 5.56 NATO Low Mass AR-15 Bolt Carrier Assembly - Polished Nickel Boron
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Wilson Combat
Overview
The Wilson Combat 5.56 NATO Low Mass AR-15 Bolt Carrier Assembly features a polished nickel boron finish that enhances durability and ease of cleaning while providing a smooth operational feel. Its low mass design reduces reciprocating weight, which can improve overall cycling speed and reduce felt recoil, making it an excellent choice for builders looking to enhance performance. This assembly is commonly found in mid-length gas system builds chambered in 5.56 NATO.
Specifications
Wilson Combat 5.56 NATO Low Mass AR-15 Bolt Carrier Assembly - Polished Nickel Boron
Available Merchants(4)
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August 2026 on GunPartPicker
Wilson Combat 5.56 NATO Low Mass AR-15 Bolt Carrier Assembly - Polished Nickel Boron ranked #13 of the 229 bolt carrier groups builders added on GunPartPicker in August 2026, behind the Bravo Company Manufacturing AR-15 Bolt Carrier Group - M16, with about 1% of all bolt carrier groups added to builds. Up from #18 in July. Builds with this bolt carrier group are mostly chambered in 5.56 NATO (75%, then 300 Blackout 17%), split between mid-length (44%) and carbine-length (22%) gas systems, and mostly AR-15 (81%, then AR-10 19%).
It was hard to find in August 2026, in stock on only 10 of the 22 days we checked, and today 3 of the 4 retailers we track have it in stock. The best price drifted down from $219.95 to $203.72 over August 2026 without a real sale. Buying today, the lowest price is $203.72 at KY Gun Company, which matches the best price we saw in August.
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Frequently Built With
The part most often added in each category by the 78 builds that include this one
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Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all 4 →Builds in the community that include the Wilson Combat 5.56 Nato Low Mass Ar-15 Bolt Carrier Assembly - Polished Nickel Boron
| Build | Parts | Total |
|---|---|---|
 | 23 | $2440.18 |
 | 31 | $2796.05 |
 | 22 | $3361.72 |
 | 6 | $1545.12 |
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