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
November 2026 so far on GunPartPicker
Wilson Combat 5.56 NATO Low Mass AR-15 Bolt Carrier Assembly - Polished Nickel Boron ranks #17 of the 246 bolt carrier groups builders have added on GunPartPicker so far in November 2026, behind the Wilson Combat M16 Bolt Carrier Assy 5.56 NATO Polished Nickel Boron, with about 1 in every 111 bolt carrier groups added to builds. Down from #16 in October. Builds with this bolt carrier group are mostly chambered in 5.56 NATO (85%), split between mid-length (59%) and carbine-length (15%) gas systems, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today all 3 retailers we track have it in stock. Buying today, the lowest price is $203.72 at KY Gun Company, which matches the best price we saw in October.
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Frequently Built With
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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 builds →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 | $2430.96 |
 | 31 | $2838.76 |
 | 22 | $3372.21 |
 | 6 | $1545.12 |
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