AR-15 5.56mm Full Auto Bolt Carrier Group Black

Name: AR-15 5.56mm Full Auto Bolt Carrier Group Black
Brand: LMT Defense
Availability: InStock

LMT Defense · Bolt Carrier Group

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AR-15 5.56mm Full Auto Bolt Carrier Group Black

Best price

$304.20at Brownells

In stock Lowest in 30 dayschecked Nov 13, 2026

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Fits and works with

Caliber: 5.56 / .223 · Shop matching ammo
Bolt: Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups

Specifications

Manufacturer: LMT Defense
Platform: AR-15
Caliber: 5.56 mm NATO

Where to buy

Store	Price	Availability	Buy
Brownells Best price 17.76% off · ends Nov 15 · exclusions apply	$304.20checked Nov 13, 2026	In stock	Buy at Brownells
AR15Discounts 5% off	$249.75checked Nov 13, 2026	Check store	Buy at AR15Discounts
Dirty Bird	$249.75checked Nov 13, 2026	Check store	Buy at Dirty Bird
Battlehawk Armory	$304.20checked Nov 13, 2026	Check store	Buy at Battlehawk Armory

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

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Lowest in-stock price in the last 30 days: $304.20 at Brownells. Dashed line = out of stock. Tracking since Sep 27, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
AR15Discounts	$249.75	$249.75	$249.75
Battlehawk Armory	$304.20	$304.20	$304.20
Brownells	$304.20	$304.20	$304.20
Dirty Bird	$249.75	$249.75	$249.75

Since Sep 27, 2026.

About this part

The AR-15 5.56mm Full Auto Bolt Carrier Group Black is a 5.56 / .223 bolt carrier group from LMT Defense. It's sold by 4 stores (1 in stock), from $249.75 to $304.20. The lowest in-stock price in the last 30 days was $304.20 at Brownells.

From the manufacturer

AR-15 BOLT CARRIER GROUP The L7D3 is the perfect BCG for a Mil-Spec build or upgrade from sub-par equipment. LMT Defense has made the full-auto M16/M4 BCG and its components for years replacement parts for the United States hard work war fighters and other that need reliable equipment. These BCG's are standard equipment in all of our complete full auto weapon systems. Works well with both suppressed and unsuppressed weapon systems. Also available in L7A3 Semi-Auto Only. Mfg: Lmt Defense