KAK AR15 BCG M16 556 K-SPEC NP3 DE
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Overview
The KAK AR15 BCG M16 556 K-SPEC NP3 DE is a bolt carrier group. Compare prices from multiple merchants and find the best deal.
Specifications
Available Merchants(4)
Prices checked
Price Alert
October 2026 on GunPartPicker
KAK AR15 BCG M16 556 K-SPEC NP3 DE ranked #43 of the 258 bolt carrier groups builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #65 of the 552 bolt carrier groups builders have added. Builds with this bolt carrier group are mostly chambered in 5.56 NATO (63%, then 300 Blackout 25%), split between mid-length (42%) and pistol-length (33%) gas systems, and nearly all AR-15.
It was in stock most times we checked in October 2026, but today only Optics Planet has it in stock. Buying today, the lowest price is $229.46 at Optics Planet, which matches the best price we saw in October.
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Frequently Built With
The part most often added in each category by the builds that include this one
Geissele Automatics AR-15/M16 Super Charging Handle, Ddc
PSA AR-15 Built Stealth Upper Receiver - No T Marks - 516444539
Radian Weapons ADAC-15 Stripped Lower Receiver - Gray, .223 Remington/5.56x45mm, Premium Quality for Reliable and Accurate AR Builds - R0388
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
Radian Weapons Talon Ambidextrous Safety Selector 2-Lever KIT - Radian Grey
B5 Systems P-Grip 23 Black Composite
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 builds →Builds in the community that include the KAK AR15 BCG M16 556 K-SPEC NP3 DE
| Build | Parts | Total |
|---|---|---|
 | 23 | $2677.17 |
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