Wilson Combat M16 Bolt Carrier Assy 5.56 NATO Polished Black Nitride

All Wilson Combat bolt carrier groups

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Wilson Combat M16 Bolt Carrier Assy 5.56 Nato Polished Blk Nitride - Bolt Carrier Group for AR-15 - view 1
Wilson Combat M16 Bolt Carrier Assy 5.56 Nato Polished Blk Nitride - Bolt Carrier Group for AR-15 - view 2
Wilson Combat M16 Bolt Carrier Assy 5.56 Nato Polished Blk Nitride - Bolt Carrier Group for AR-15 - view 3
Wilson Combat M16 Bolt Carrier Assy 5.56 Nato Polished Blk Nitride - Bolt Carrier Group for AR-15 - view 4
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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.

Specifications

MPNTR-BCA-SBN-556
Caliber5.56 NATO
StyleM16 Bolt Carrier
FinishNitride

Available Merchants(8)

Prices checked

Price Alert

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Ammunition Depot logo
Ammunition Depot
~$28.90 est. shipping
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In Stock
$150.49
KY Gun Company logo
KY Gun Company
Flat rate shipping
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In Stock
$157.10
Palmetto State Armory logo
Palmetto State Armory
Free shipping
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In Stock
$166.99
Optics Planet logo
Optics Planet
Free shipping
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In Stock
$185.95
Primary Arms logo
Primary Arms
Free shipping
Shipping Speed
In Stock
$185.95
Classic Firearms logo
Classic Firearms
Shipping varies
Shipping Speed
In Stock
$185.95
BattleHawk Armory logo
BattleHawk Armory
Shipping varies
Shipping Speed
In Stock
$185.95
Brownells logo
Brownells
Free shipping
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Out of Stock
$185.95

November 2026 so far on GunPartPicker

Wilson Combat M16 Bolt Carrier Assy 5.56 NATO Polished Black Nitride is the third most added bolt carrier group on GunPartPicker so far in November 2026, behind the PSA AR-15 Bolt Carrier Group 5.56 Full-Auto Nitride MPI - 516446953, with about 8% of all bolt carrier groups added to builds. That's its 2nd straight month at #3. Builds with this bolt carrier group are mostly chambered in 5.56 NATO (84%), split between mid-length (57%) and carbine-length (29%) 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 7 of the 8 retailers we track have it in stock. It dipped to $150.49 at Ammunition Depot for a stretch in October 2026, well under its usual $185.95, so sales do come around. Buying today, the lowest price is $150.49 at Ammunition Depot, which matches the best price we saw in October.

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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

100%
AR-15100%

Caliber

83.5%
5.56 NATO83.5%
.223 Wylde7.4%
300 Blackout5.3%
7.62x39mm0.8%
.308 Win0.7%
Other2.3%

Gas System

56.7%
Mid-Length56.7%
Carbine28.6%
Pistol8%
Rifle6.1%
Intermediate0.5%
Other0.2%

Builds Featuring This Part

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Builds in the community that include the Wilson Combat M16 Bolt Carrier Assy 5.56 Nato Polished Blk Nitride

BuildPartsTotal
Wilson Combat 16" build build
Wilson Combat 16" build
15$1303.57
PSA 16" build build
PSA 16" build
12$1190.16
ICR1 build
ICR1
30$6967.18
16" recce build
16" recce
15$4992.57
First 5.56 build build
First 5.56 build
15$4087.36
new 5.56 build build
new 5.56 build
10$1088.86
16" build build
16" build
26$3340.44
Carbine 16" 5.56 build
Carbine 16" 5.56
37$6561.86
my build build
my build
22$2977.80
carbine 10.3" build
carbine 10.3"
15$1335.60
PSA 16" 5.56 build
PSA 16" 5.56
15$2585.12
for home defense 18" build
for home defense 18"
23$1797.64

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