KAK AR15 BCG M16 556 K-SPEC FDE DE
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Overview
The KAK AR15 BCG M16 556 K-SPEC FDE DE is a bolt carrier group. Compare prices from multiple merchants and find the best deal.
Specifications
October 2026 on GunPartPicker
KAK AR15 BCG M16 556 K-SPEC FDE DE ranked #143 of the 258 bolt carrier groups builders added on GunPartPicker in October 2026. Builders have been adding it to their builds on GunPartPicker since April 2026. All time, it ranks #135 of the 505 bolt carrier groups builders have added.
It was out of stock everywhere we track for all of October 2026, and today none of the 3 retailers we track has it in stock right now. Listed prices start at $215.99 at Optics Planet for when it comes back.
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Frequently Built With
The part most often added in each category by the builds that include this one
KAK Complete AR-15 Upper Receiver - 5.56 NATO - 11.5"
Spike's Tactical AR-15 Lower - Forged Spartan - Stripped
CMMG AR15 Charging Handle Assembly, Black - 55BA5EC
CMMG AR-15 Mil-Spec Trigger KIT
Strike Industries AR-15 Ultra Light Pivot / Takedown Pins - FDE
Aim Sports AR-15 Free Float M-LOK Handguard - FDE - 13.5"
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with 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.
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