Premium 5.56 Nickel Boron BCG with Carpenter 158 Bolt - No Logo
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Palmetto State Armory
Overview
The Premium 5.56 Nickel Boron Bolt Carrier Group (BCG) from Palmetto State Armory is designed specifically for 5.56 NATO caliber builds, providing enhanced durability and ease of cleaning thanks to its Nickel Boron finish. This finish not only reduces friction but also helps in resisting corrosion, making it a reliable choice for builders who value performance and longevity. You’ll commonly find this BCG in mid-length gas system builds, where reliability and smooth operation are essential.
Specifications
Premium 5.56 Nickel Boron BCG with Carpenter 158 Bolt - No Logo
August 2026 on GunPartPicker
Palmetto State Armory Premium 5.56 Nickel Boron BCG with Carpenter 158 Bolt - No Logo ranked #47 of the 229 bolt carrier groups builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since March 2026. All time, it ranks #36 of the 445 bolt carrier groups builders have added. Builds with this bolt carrier group are nearly all chambered in 5.56 NATO, nearly all on mid-length gas, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today the one retailer we track has it in stock. The best price crept up from $89.99 to $109.99 over August 2026. Buying today, the lowest price is $109.99 at Palmetto State Armory, above August's low of $89.99, so a better deal may come back.
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Builds Featuring This Part
See all 4 →Builds in the community that include the Premium 5.56 Nickel Boron BCG with Carpenter 158 Bolt - No Logo
| Build | Parts | Total |
|---|---|---|
 | 13 | $813.55 |
 | 9 | $1489.90 |
 | 22 | $1246.95 |
 | 8 | $812.46 |
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