The MDT Metal Long Action .300 Win Mag 5-Round Magazine 3.715 Black 102143BLK is a premium, precision-engineered magazine designed for long-action .300 Winchester Magnum rifles. This specific 3.715 variant features an optimized internal length that provides improved feeding reliability and better compatibility with a wide range of long-action precision rifle chassis and actions. Built entirely from metal, this 5-round magazine delivers the strength, consistency, and durability that competitive shooters and long-range hunters demand from MDT products.
Why Choose the MDT Metal Long Action .300 Win Mag 3.715 Magazine?
Precision rifle shooters who run .300 Win Mag in long-action platforms need magazines that can handle the cartridge’s size and pressure while maintaining flawless feeding. The MDT 3.715 version is specifically designed with a refined internal dimension that enhances cartridge alignment and feeding performance in many popular long-action chassis systems. The all-metal construction ensures the magazine body remains rigid under heavy use, unlike polymer magazines that can flex or wear over time. With a 5-round capacity, this magazine meets the requirements of most precision rifle competitions while offering a compact and lightweight profile. MDT has built a strong reputation for producing high-quality rifle components, and this .300 Win Mag magazine continues that tradition with thoughtful engineering tailored for serious long-range shooters.
Key Features of the MDT Metal Long Action .300 Win Mag 3.715 Magazine
- 3.715 Optimized Length – Special internal dimension for improved feeding and chassis compatibility
- All-Metal Construction – Heavy-duty steel body for maximum strength and long-term durability
- .300 Winchester Magnum Specific – Designed exclusively for the .300 Win Mag cartridge
- Long Action (LA) Design – Compatible with long-action precision rifle platforms
- 5-Round Capacity – Ideal capacity for precision rifle competition and long-range hunting
- Matte Black Finish – Corrosion-resistant, non-reflective finish suitable for field use
- Precision Machined – Manufactured to tight tolerances for consistent and reliable feeding
- Model 102143BLK – Official MDT part number
Performance and Build Quality
The MDT Metal Long Action .300 Win Mag 3.715 5-Round Magazine 102143BLK is engineered for shooters who require maximum reliability from their precision rifle setup. The 3.715 internal length specification helps optimize cartridge presentation and reduces the chance of feeding issues commonly found with generic magazines. The all-metal construction provides exceptional rigidity, ensuring the magazine maintains its shape and feeding geometry even after thousands of rounds. This magazine is particularly well-suited for use in MDT chassis systems, where the rigid metal body enhances overall stability and performance. The matte black finish offers excellent protection against corrosion and wear, making it a dependable choice for both competitive shooters and hunters who operate in demanding environments. Whether used in PRS competitions, extreme long-range shooting, or big game hunting, this MDT magazine delivers consistent, trouble-free performance.
Technical Specifications
| Product Name | MDT Metal Long Action .300 Win Mag Magazine 3.715 |
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| Model Number | 102143BLK |
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| UPC | 990482719104 |
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| Caliber | .300 Winchester Magnum |
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| Capacity | 5 Rounds |
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| Action Type | Long Action (LA) |
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| Internal Length | 3.715 inches |
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| Material | Steel / Metal |
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| Finish | Matte Black |
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| Product Type | Precision Rifle Magazine |
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| Key Feature | 3.715 Optimized Length for Improved Feeding |
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| Best For | Long Range Shooting, Precision Rifle Competition, Big Game Hunting |
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Precision engineered for .300 Win Mag long-action rifles.
The MDT Metal Long Action .300 Win Mag 3.715 Magazine delivers reliable feeding and rugged durability for serious precision shooters.
Important Notice: This product is intended for lawful use only. It is the buyer’s responsibility to ensure the product is suitable for their intended application and that they comply with all applicable federal, state, and local laws regarding firearm magazines and ownership. Magazine capacity laws vary by jurisdiction. Always follow proper firearm safety rules. Keep out of reach of children. This product is intended for lawful use only.
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