
KAK Industry
Overview
The KAK AR15 BCG M16 556 K-SPEC NP3 DE DOWNVENT BOLT C... is a bolt carrier group. Compare prices from multiple merchants and find the best deal.
Prices checked
KAK AR15 BCG M16 556 K-SPEC NP3 DE DOWNVENT BOLT C... ranked #52 of the 258 bolt carrier groups builders added on GunPartPicker in October 2026. Builders have been adding it to their builds on GunPartPicker since March 2026. All time, it ranks #79 of the 505 bolt carrier groups builders have added. Builds with this bolt carrier group are mostly chambered in 5.56 NATO (63%, then 300 Blackout 31%), split between pistol-length (44%) and carbine-length (33%) gas systems, and mostly AR-15 (93%).
It was out of stock everywhere we track for all of October 2026, and today the one retailer we track is out of stock. Listed prices start at $247.49 at BattleHawk Armory for when it comes back.
Trending bolt carrier groups →
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
We ranked every bolt carrier group by how often it shows up in real builds on GunPartPicker.
Read the guide: The Most Trusted AR-15 BCGs →Check it against the live catalog:
The part most often added in each category by the builds that include this one

Griffin Armament MK2 AR-15 Ambidextrous Stripped Lower Receiver Flat Dark Earth

Geissele Automatics AR-15/M16 Super Charging Handle, Ddc

CMMG Upper Receiver Assembly MK4/AR15 Forward Assist Coyote Tan

Triggertech AR Diamond Trigger Flat Black

Strike Industries Ambidextrous Magazine Release, Black - ARAMBIMRBK

Maxim Defense CQB Gen 7 Standard Buffer Adjustable AR-15 Stock, Black - MXM-47617
Aggregated and anonymized data showing how builders use this product
Builds in the community that include the KAK AR15 BCG M16 556 K-SPEC NP3 DE DOWNVENT BOLT C...
| Build | Parts | Total |
|---|---|---|
![]() | 21 | $1833.33 |
No reviews yet. Be the first to review this product!