Stern Defense BU9 9mm AR-15 M16-Style Bolt Nickel-Boron MPN 004SDBU9NIBECHO
User Ratings
No ratings yet
Be the first to review this product
The Stern Defense 9mm BU9 NIB bolt for AR-15 brings a reliable 9mm Luger bolt solution to rifle bolt parts, delivering smooth cycling and dependable performance.
Engineered with a nickel-boron finish, this M16-style bolt enhances wear resistance and corrosion protection to help maintain consistent function in diverse field conditions.
Designed for 9mm Luger cartridges, it integrates into AR-15 builds intended to run 9mm through Glock and Colt-compatible configurations. The 9mm BU9 NIB bolt aligns with standard AR-15 receivers, supporting smooth feed and extraction.
Ideal for competition, varmint hunting, or tactical training applications.
Specifications
- Manufacturer:
- Stern Defense
- Category:
- bolt-carrier-group
- Caliber:
- 9mm Luger
- Platforms:
- AR-15
- UPC:
- 860141001546
- MPN:
- 004SDBU9NIBECHO
- Required Component:
- Yes
Parts Cabinet
Track parts you own or plan to buy.
Where to Buy
Have one to sell?
Sponsored
MantisX
The smart way to train your AR build
Built your rifle — now train it. BlackBeardX installs in minutes and turns your AR into a full dry fire system with smart feedback on every pull.
Shop BlackBeardXPrice History
Current
$163.73
Lowest
$163.73
Highest
$178.94
Price Alert
Sign in to save a target price and receive an email when this component drops.
Sign In to Set AlertSimilar Products
Bravo Company Bolt Carrier Group, Black
Bravo Company Manufacturing (BCM)
$238.99
Microbest PSA Custom Fathers of Freedom 5.56 NATO Full Auto Profile Phosphate Bolt Carrier
Microbest
$134.95
Toolcraft Logo'd Premium 5.56 Nickel Boron BCG with Carpenter 158 Bolt
Toolcraft
$109.99
Bravo Company Bolt Carrier Group, Flat Dark Earth
Bravo Company Manufacturing (BCM)
$222.99
Aero Precision M16 / AR-15 Bolt Carrier Group - Parkerized - No Logo
Aero Precision
$126.84
M16 5.56 Bolt Carrier Group
Colt
$196.12
5.56x45mm NATO Bolt Assembly Steel for AR-15
Sons Of Liberty Gun Works
$95.49
Aero Precision 5.56 Bolt Carrier Group, Complete - Nickel Boron - APRH100071C
Aero Precision
$188.99
Builds Using This Part
No builds yet — be the first to use this part.
Related Guides
Guide
.308 Win vs. 6.5 Creedmoor for AR-10 Builds
A technical comparison of .308 Winchester and 6.5 Creedmoor for AR-10 platform builds — covering ballistics, recoil, parts availability, and which cartridge fits which use case.
5 min read
Guide
AR-10 Receiver Patterns: DPMS vs. Armalite Compatibility
The AR-10 has two incompatible receiver patterns — DPMS and Armalite — that look similar but do not share parts. This guide explains the differences and how to buy correctly.
6 min read
Guide
The AR-10 Platform: What It Is and How It Differs from the AR-15
A practical overview of the AR-10 — its origins, how it differs from the AR-15, available calibers, and when it makes more sense than a standard AR-15 build.
6 min read