Colt 5.56 NATO M16 / AR-15 Bolt Carrier Group
Colt
Overview
The Colt 5.56 NATO M16 / AR-15 Bolt Carrier Group is designed for reliable function in both 5.56 NATO and .300 BLK calibers, making it a versatile choice for various builds. Its phosphate finish offers corrosion resistance, while the M16-style carrier ensures smooth operation and enhanced reliability during cycling. This bolt carrier group is commonly found in pistol gas system configurations, allowing for a compact and efficient setup in your AR-15 builds.
Specifications
October 2026 on GunPartPicker
Colt 5.56 NATO M16 / AR-15 Bolt Carrier Group ranked #143 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 #77 of the 549 bolt carrier groups builders have added. Builds with this bolt carrier group are split between 5.56 NATO (54%) and 300 Blackout (37%), split between pistol-length (50%) and carbine-length (36%) gas systems, and nearly all AR-15.
It was out of stock everywhere we track every time we checked in October 2026, and today none of the 2 retailers we track has it in stock right now. Listed prices start at $182.77 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
Not sure which bolt carrier group to pick?
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:
Frequently Built With
The part most often added in each category by the builds that include this one
Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4
Colt M4 Commando 5.56mm Semi-Auto Lower Receiver Assembly With "LE" Prefix
Pri M84 Gas Buster Charging Handle With Military Big Latch - FDE
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
B5 Systems Government Issue SOPMOD Stock Collapsible Mil-Spec Black
Magpul AFG-2 Angled Fore Grip - Black
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 Colt 5.56 Nato M16 / Ar-15 Bolt Carrier Group
| Build | Parts | Total |
|---|---|---|
 | 11 | $1293.54 |
 | 22 | $2465.03 |
 | 19 | $2195.16 |
| 16 | $1213.80 |
 | 21 | $1772.48 |
 | 8 | $1750.13 |
 | 8 | $1525.29 |
No reviews yet. Be the first to review this product!