User Ratings
No ratings yet
Be the first to review this product
Ruger OEM Replacement Black Oxide Ruger 57 5.7x28mm Magazine - 20 Rounds. This replacement or spare magazine is compatible with your Ruger 57. Made in the USA. Caliber: 5.7x28mm. Capacity: 20rd. Finish: Black Oxide (oxide). Model: Ruger-5.7. Material: Steel.
Specifications
- Manufacturer:
- Ruger
- Category:
- magazine
- UPC:
- 736676907007
- MPN:
- 90700
- Required Component:
- No
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
$35.36
Lowest
$33.14
Highest
$39.99
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 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
Magpul PMAG GEN M3 5.56x45/.223 30rd Window Rifle Magazine - MultiCam Black
Magpul
$14.03
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