Toolcraft 5.56 Phosphate MPI Full-Auto Bolt Carrier Group - No Logo
All Palmetto State Armory bolt carrier groups
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Palmetto State Armory
Overview
The Toolcraft 5.56 Phosphate MPI Full-Auto Bolt Carrier Group is designed specifically for 5.56 NATO caliber rifles, featuring a phosphate finish that provides durability and corrosion resistance. This full-auto style BCG ensures reliable cycling and performance, making it suitable for builds that demand robust functionality. You'll typically find this BCG in carbine gas system setups, aligning well with the common 5.56 NATO caliber configurations.
Specifications
Toolcraft 5.56 Phosphate MPI Full-Auto Bolt Carrier Group - No Logo
Available Merchants(1)
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Price Alert
September 2026 on GunPartPicker
Palmetto State Armory Toolcraft 5.56 Phosphate MPI Full-Auto Bolt Carrier Group - No Logo ranked #26 of the 217 bolt carrier groups builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since January 2026. All time, it ranks #29 of the 475 bolt carrier groups builders have added. Builds with this bolt carrier group are mostly chambered in 5.56 NATO (91%), split between mid-length (49%) and carbine-length (38%) gas systems, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today the one retailer we track has it in stock. Prices barely moved in September 2026, holding around $99.99, so there haven't been real sales lately. Buying today, the lowest price is $99.99 at Palmetto State Armory, which matches the best price we saw in September.
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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 6 →Builds in the community that include the Toolcraft 5.56 Phosphate MPI Full-Auto Bolt Carrier Group - No Logo
| Build | Parts | Total |
|---|---|---|
 | 22 | $885.82 |
 | 22 | $1704.16 |
 | 9 | $492.33 |
 | 12 | $671.01 |
 | 20 | $1675.21 |
 | 20 | $1897.67 |
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