LMT M16 / AR-15 Bolt Carrier Group 5.56/.223

Lewis Machine & Tool Lmt M16 / Ar-15 Bolt Carrier Group 5.56/.223 - Bolt Carrier Group for AR-15 - view 1
Lewis Machine & Tool Lmt M16 / Ar-15 Bolt Carrier Group 5.56/.223 - Bolt Carrier Group for AR-15 - view 2
Lewis Machine & Tool Lmt M16 / Ar-15 Bolt Carrier Group 5.56/.223 - Bolt Carrier Group for AR-15 - view 3
Lewis Machine & Tool Lmt M16 / Ar-15 Bolt Carrier Group 5.56/.223 - Bolt Carrier Group for AR-15 - view 4
Lewis Machine & Tool Lmt M16 / Ar-15 Bolt Carrier Group 5.56/.223 - Bolt Carrier Group for AR-15 - view 5
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Lewis Machine & Tool

Overview

The LMT M16 / AR-15 Bolt Carrier Group is designed for the .223 Wylde caliber, allowing for optimal performance with both .223 Remington and 5.56 NATO ammunition. Its phosphate finish offers enhanced corrosion resistance while maintaining a smooth operation. This M16-style bolt carrier is ideal for builders focusing on mid-length gas systems, making it a popular choice for versatile, reliable rifles that accommodate a range of ammunition types.

Specifications

MPNL7D3
StyleM16 Bolt Carrier
Caliber.223 Wylde
FinishPhosphate

Available Merchants(1)

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$304

Build history on GunPartPicker

Builders have been adding the LMT M16 / AR-15 Bolt Carrier Group 5.56/.223 to their builds on GunPartPicker since January 2026. All time, it ranks #137 of the 445 bolt carrier groups builders have added. Builds with this bolt carrier group are split between 5.56 NATO (50%) and 300 Blackout (25%), split between mid-length (33%) and carbine-length (33%) gas systems, and nearly all AR-15.

It was hard to find in August 2026, in stock on only 6 of the 15 days we checked, and today the one retailer we track has it in stock. It dipped to $224.10 at Brownells for a stretch in August 2026, well under its usual $304.20, so sales do come around. Buying today, the lowest price is $304.20 at Primary Arms, above August's low of $224.10, so a better deal may come back.

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Frequently Built With

The part most often added in each category by the 16 builds that include this one

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Caliber

50%
5.56 NATO50%
300 Blackout25%
.223 Wylde25%

Gas System

33.3%
Mid-Length33.3%
Carbine33.3%
Pistol16.7%
Rifle16.7%

Builds Featuring This Part

See all 4 →

Builds in the community that include the Lmt M16 / Ar-15 Bolt Carrier Group 5.56/.223

BuildPartsTotal
for hd 16" build
for hd 16"
8$1813.40
Carbine 18" 5.56 build
Carbine 18" 5.56
22$6040.40
SBR 16.5" 5.56 build
SBR 16.5" 5.56
32$2816.77
PSA 9" build build
PSA 9" build
20$1036.34

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