User Ratings
No ratings yet
Be the first to review this product
MDT AICS Long Action Metal Magazine for .300 Winchester Magnum
Product Description The MDT Metal Magazine for .300 Winchester Magnum is a rugged, long-action AICS-pattern rifle magazine built from high-strength steel and finished in black Cerakote Elite for excellent durability and corrosion resistance. Designed for 3.715-inch long action AICS magazine wells, it provides reliable feeding and a secure fit in compatible AICS-pattern detachable bottom metal (DBM) chassis and bottom metals. This 5-round magazine is intended for magnum-length cartridges and is not compatible with .300 Remington Ultra Mag, .300 Weatherby, and similar cartridges.
Product Highlights
High-strength steel construction for dependable performance in hard use Black Cerakote Elite finish helps resist wear and corrosion Fits long action Accuracy International Chassis System (AICS) pattern 3.715" magazine wells 5-round capacity magazine designed for .300 Winchester Magnum Not compatible with .300 Remington Ultra Mag, .300 Weatherby, and similar cartridges
Specs
Brand: MDT
Type: Rifle magazine (AICS pattern), long action
Cartridge: .300 Winchester Magnum
Capacity: 5 rounds
Magazine length: 3.715" (Long Action AICS)
Maximum COAL (3.715" magazine): 3.600"
Material: Steel
Finish/Color: Black Cerakote Elite
Manufacturer Part Number: 102143-BLK
UPC: 723905908713
Specifications
- Manufacturer:
- Mdt
- Category:
- magazine
- UPC:
- 8228078911610
- MPN:
- 102143-BLK
- 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
$82.95
Lowest
$82.95
Highest
$82.95
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 GEN M3 AR-15/M16/M4 Magazine 5.56 NATO 30 Round
Magpul
$11.99

Magpul PMAG 10/30 AR/M4 GEN M3 10-Round Magazine, Black 5.56x45 NATO/.223 Rem
Magpul
$13.87

Magpul PMAG GEN M2 5.56mm 30-Round FDE Magazine with Window
Magpul
$11.88

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 Industries
$13.34

DuraMag Speed AR-15 Magazine 30rd Black Orange Follower
Duramag
$18.49

Magpul PMAG 30 Gen M3 AR-15 Magazine 5.56x45 NATO / .223 Remington
Magpul
$14.95

Magpul PMAG AR/M4 Gen M2 MOE 5.56x45 NATO AR-15 Magazine
Magpul
$9.94
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