LMT M16 / AR-15 Bolt Carrier Group 5.56/.223
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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
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
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Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all 4 →Builds in the community that include the Lmt M16 / Ar-15 Bolt Carrier Group 5.56/.223
| Build | Parts | Total |
|---|---|---|
 | 8 | $1813.40 |
 | 22 | $6040.40 |
 | 32 | $2816.77 |
 | 20 | $1036.34 |
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