User Ratings
No ratings yet
Be the first to review this product
SIG SAUER MPX 9mm 35-round Extended Magazine. Factory-engineered extended magazine for MPX platforms. Polymer body provides lightweight durability with metal feed lips for reliable feeding. Compatible with all SIG MPX generations.
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
$50.99
Lowest
$43.34
Highest
$50.99
Price Alert
Sign in to save a target price and receive an email when this component drops.
Sign In to Set AlertSimilar Products
Magpul PMAG 30 AR/M4 GEN M3 Magazine, 5.56 NATO, 30-Round, Black (MAG557-BLK)
Magpul
$11.99
Magpul PMAG 10/30 AR/M4 Gen M3 10-Round Magazine, 5.56 NATO, Black (MAG1183-BLK)
Magpul
$14.59
Magpul PMAG 30 AR/M4 Gen M3 Window Magazine 5.56x45mm NATO
Magpul
$18.00
Magpul PMAG GEN M2 MOE 30rd Detachable Magazine 223 Rem 5.56 NATO with Window
Magpul
$11.99
Magpul PMAG GEN M2 5.56mm 30-Round FDE Magazine with Window
Magpul
$11.88
Magpul MAG556ODG PMAG Gen M3 Window 30rd 5.56/.223 OD Green
Magpul
$18.00
AR-15/M16 Standard 30-Round Magazine .223/5.56 NATO Black
AR-15/M16 Standard
$13.95
Magpul MAG556-ODG Windowed PMAG 30 Gen M3 5.56/.223 Polymer Magazine OD Green
Magpul
$17.05
Builds Using This Part
No builds yet — be the first to use this part.
Related Guides
Guide
AK Magazine Fit, Lockup, and Reliability Basics
A practical guide to AK magazine fit, front-to-back lockup, and how magazine variation affects feeding, bolt travel, and real-world reliability.
5 min read
Guide
The AK Platform: Core Design, Strengths, and Builder Tradeoffs
A practical AK overview covering operating system basics, parts ecosystem realities, and where the AK platform shines compared to AR-pattern rifles.
8 min read
Guide
AR-15 Caliber Options Beyond 5.56: What Changes and Why
A neutral overview of common AR-15 caliber paths beyond 5.56, including .300 Blackout, 6.5 Grendel, and .22 LR conversion approaches with practical system tradeoffs.
4 min read