Wilson Combat .308 Win Bolt Carrier Assembly, Nickel Boron - TR-BCA-NB-308

Wilson Combat .308 Win Bolt Carrier Assembly, Nickel Boron - TR-BCA-NB-308 - Bolt Carrier Group for AR-15 - view 1
Wilson Combat .308 Win Bolt Carrier Assembly, Nickel Boron - TR-BCA-NB-308 - Bolt Carrier Group for AR-15 - view 2
Wilson Combat .308 Win Bolt Carrier Assembly, Nickel Boron - TR-BCA-NB-308 - Bolt Carrier Group for AR-15 - view 3
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Wilson Combat

Overview

The Wilson Combat .308 Win Bolt Carrier Assembly features a Nickel Boron finish that enhances durability and reduces friction during operation, which is particularly beneficial for reliable cycling and easy cleaning. Designed for the 6.8 SPC II caliber, this assembly is engineered to provide a smooth and efficient performance in your build. It is commonly found in mid-length gas system configurations, making it a solid choice for those looking to optimize their .308 Win rifle performance.

Specifications

MPNTRBCANB308
Caliber.308 Win
FinishNickel Boron

Available Merchants(8)

Prices checked

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Ammunition Depot logo
Ammunition Depot
~$28.90 est. shipping
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In Stock
$244
KY Gun Company logo
KY Gun Company
Flat rate shipping
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In Stock
$249
Optics Planet logo
Optics Planet
Free shipping
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$278
Brownells logo
Brownells
Free shipping
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In Stock
$309
Primary Arms logo
Primary Arms
Free shipping
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In Stock
$309
Classic Firearms logo
Classic Firearms
Shipping varies
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In Stock
$309
BattleHawk Armory logo
BattleHawk Armory
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In Stock
$309
Palmetto State Armory logo
Palmetto State Armory
Free shipping
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$309

September 2026 on GunPartPicker

Wilson Combat .308 Win Bolt Carrier Assembly, Nickel Boron - TR-BCA-NB-308 was the fifth most added bolt carrier group on GunPartPicker in September 2026, behind the PSA AR-15 Bolt Carrier Group 5.56 Full-Auto Nitride MPI - 516446953, with about 3% of all bolt carrier groups added to builds. Up from #6 in August. Builds with this bolt carrier group are mostly chambered in 5.56 NATO (65%, then .308 Win 16%), mostly on mid-length gas (66%, then carbine-length 16%), and mostly AR-15 (82%, then AR-10 17%).

Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today all 8 retailers we track have it in stock. Prices barely moved in September 2026, holding around $243.99, so there haven't been real sales lately. Buying today, the lowest price is $243.99 at Ammunition Depot, which matches the best price we saw in September.

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Frequently Built With

The part most often added in each category by hundreds of builds that include this one

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

82.1%
AR-1582.1%
AR-1016.8%
AR-91.1%

Caliber

64.8%
5.56 NATO64.8%
.308 Win15.7%
.223 Wylde9.7%
300 Blackout4.7%
6.5 Creedmoor1.3%
Other3.6%

Gas System

65.5%
Mid-Length65.5%
Carbine15.5%
Rifle14.9%
Pistol3.6%
Blowback0.6%

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