Toolcraft 5.56 Phosphate MPI Full-Auto Bolt Carrier Group - No Logo

Palmetto State Armory Toolcraft 5.56 Phosphate MPI Full-Auto Bolt Carrier Group - No Logo - Bolt Carrier Group for AR-15 - view 1
Palmetto State Armory Toolcraft 5.56 Phosphate MPI Full-Auto Bolt Carrier Group - No Logo - Bolt Carrier Group for AR-15 - view 2
Buy Now

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

MPN5655103990
StyleFull-Auto
FinishPhosphate
Caliber5.56 NATO

Available Merchants(1)

Price Alert

Log in to set a price alert on this product.

Palmetto State Armory logo
Palmetto State Armory
Free shipping
Shipping Speed
In Stock
$100

Frequently Built With

The part most often added in each category by the 48 builds that include this one

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

75%
AR-1575%
AR-1025%

Caliber

75%
5.56 NATO75%
.223 Wylde25%

Gas System

100%
Mid-Length100%

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

BuildPartsTotal
Truck gun 16"
22$878.31
10.3" american defense clone
22$1650.64
16"
9$462.85
anderson manufacturing 17.7" build
12$658.74
16" SBR
20$1648.14
Truck gun 8.2" 300 Blackout
20$1784.21

Customer reviews

4.0out of 5

1 global rating

Review this product

Share your thoughts with other customers

Write a customer review

Top reviews

R
razey
Toolcraft 5.56 BCG
Reviewed on April 26, 2026Verified with Build

toolcraft full auto BCG with phosphate finish. lockup is positive against a mil spec barrel, headspace measured correct. carrier was tight in the upper for the first 50 rds, broke in after that and now glides clean

|