LANTAC M-Spec 5.56 AR-15 Bolt Carrier Group - Black Nitride

Lantac M-Spec 5.56 Ar-15 Bolt Carrier Group - Black Nitride - Bolt Carrier Group for AR-15 - view 1
Lantac M-Spec 5.56 Ar-15 Bolt Carrier Group - Black Nitride - Bolt Carrier Group for AR-15 - view 2
Lantac M-Spec 5.56 Ar-15 Bolt Carrier Group - Black Nitride - Bolt Carrier Group for AR-15 - view 3
Lantac M-Spec 5.56 Ar-15 Bolt Carrier Group - Black Nitride - Bolt Carrier Group for AR-15 - view 4
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Lantac

Overview

The Lantac M-Spec 5.56 AR-15 Bolt Carrier Group is designed for reliability and optimal performance in 5.56 NATO caliber builds. Featuring a nitride finish, this steel bolt carrier group enhances durability and reduces friction, ensuring smoother cycling during operation. Its M16 style configuration promotes improved gas flow and can accommodate a range of upper receiver setups, making it a versatile choice for both precision and tactical builds.

Specifications

MPN01-MSPEC-556-NIT-EBCG
StyleM16 Bolt Carrier
Caliber5.56 NATO
FinishNitride
MaterialSteel

Available Merchants(6)

Prices checked

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Primary Arms logo
Primary Arms
Free shipping
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In Stock
$171
Optics Planet logo
Optics Planet
Free shipping
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In Stock
$252
BattleHawk Armory logo
BattleHawk Armory
Shipping varies
Shipping Speed
In Stock
$262
KY Gun Company logo
KY Gun Company
Flat rate shipping
Shipping Speed
In Stock
$262
Palmetto State Armory logo
Palmetto State Armory
Free shipping
Shipping Speed
In Stock
$263
Ammunition Depot logo
Ammunition Depot
~$28.90 est. shipping
Shipping Speed
Out of Stock
$262

September 2026 on GunPartPicker

LANTAC M-Spec 5.56 AR-15 Bolt Carrier Group - Black Nitride ranked #108 of the 217 bolt carrier groups builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since March 2026. All time, it ranks #222 of the 445 bolt carrier groups builders have added.

It was in stock most days in September 2026, and today 5 of the 6 retailers we track have it in stock. Prices barely moved in September 2026, holding around $170.99, so there haven't been real sales lately. Buying today, the lowest price is $170.99 at Primary Arms, which matches the best price we saw in September.

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Builds Featuring This Part

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Builds in the community that include the Lantac M-Spec 5.56 Ar-15 Bolt Carrier Group - Black Nitride

BuildPartsTotal
Latest 5.56 build build
Latest 5.56 build
12$1264.23

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