MDT Magazine, 300 Winchester Magnum, 5 Rounds, Fits Long Action 3.85" AICS Pattern, Black 102088-BLK 102088BLK

Manufacturer: Mdt Tac
SKU: 842196
Manufacturer part number: 102088BLK
UPC: 723905910792
Availability: 20 in stock
Old price: $89.95
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MDT 3.85" AICS-Pattern Magazine — .300 Winchester Magnum, 5 Rounds (Black)

Model: 102088-BLK / 102088BLK • UPC: 723905910792 • Capacity: 5 rounds • Pattern: AICS (Long Action, 3.850" CIP length) • Color: Black

Feed your long-action magnum with confidence. The MDT 3.85" AICS-Pattern Magazine for .300 Winchester Magnum (5 rounds) delivers reliable stacking, smooth feeding, and rugged durability for hunters, precision shooters, and long-range competitors who demand consistent performance from their .300 WM rifles. Built around the AICS standard in 3.850" CIP length, this mag supports long-seated bullets and modern high-BC projectiles while maintaining dependable lockup and extraction in compatible chassis and bottom-metal systems.

Why Choose This MDT .300 Win Mag Magazine

  • AICS 3.85" (CIP) Length: Extended internal length supports longer overall cartridge lengths favored by handloaders and high-BC factory loads.

  • Rock-Solid Reliability: Engineered for consistent presentation of .300 Winchester Magnum cartridges to help prevent nose-dive, rim lock, or drag under recoil.

  • 5-Round, Hunt-Ready Capacity: The sweet spot for big-game regs and prone shooting—low profile, fewer snags, easier to manage on bags and bipods.

  • Rugged Metal Construction: A tough, precision-formed metal body with a corrosion-resistant black finish stands up to weather, transport, and high round counts.

  • AICS-Compatible: Works with long-action chassis and bottom metal designed for 3.850" AICS magazines, making integration straightforward on many precision rifle builds.

Key Features & Specs

  • Caliber: .300 Winchester Magnum (optimized)

  • Magazine Pattern: AICS long action (3.850" CIP length)

  • Capacity: 5 rounds

  • Body: Precision metal construction with protective black finish

  • Follower: Anti-tilt geometry for consistent feeding (MDT design)

  • Spring: High-tension spring engineered for magnum-stack reliability

  • Floorplate: Robust, serviceable design for straightforward cleaning

  • Color: Black

  • Model: 102088-BLK / 102088BLK

  • UPC: 723905910792

Note: Actual maximum COAL is determined by the magazine’s internal length and your bullet profile. Always confirm fit and function with your ammunition.

Compatibility & Fit Guidance

  • Chassis/Bottom Metal: Designed for rifles using AICS-pattern long action 3.850" (CIP) magazines—commonly found on MDT and other precision chassis systems that explicitly support CIP-length mags.

  • Rifles: Popular long-action platforms configured for AICS mags (verify your inlet and latch height).

  • Cartridge Family: Optimized for .300 Win Mag. Some shooters use similar belted-magnum cartridges (e.g., 7mm Rem Mag) in AICS mags; verify feeding and COAL in your specific setup before field use.

  • Not a 3.715" Mag: If your bottom metal or chassis accepts 3.715" (SAAMI) long-action magazines only, choose the correct length—this 3.850" CIP magazine will not latch or feed properly in 3.715-only systems.

Real-World Benefits

  • Consistency at Distance: Smooth, repeatable feeding supports tight SD/ES ammo testing and consistent shot-to-shot rhythm when prone or on barricades.

  • Field-Proven Durability: Metal body and protective finish handle rain, dust, mud, and pack abuse without deforming or swelling.

  • Better Bullet Choices: Extra room helps accommodate long, high-BC bullets—a big advantage for maximizing .300 WM’s downrange ballistics.

  • Easy Service: Simple disassembly makes cleaning a breeze after wet/windy match days or backcountry hunts.

Ideal Use Cases

  • Western Big-Game Hunting: A low-profile 5-round magazine that won’t foul on brush or bags.

  • PRS/NRL Hunter & Practical Rifle: Reliable feeding under recoil and position changes.

  • Load Development & Long-Range Practice: Test long-seated bullets and verify dope with repeatable cycling.

How to Confirm Fit (Quick Checklist)

  1. Check Your Inlet: Confirm your rifle/chassis is designed for AICS 3.850" CIP magazines.

  2. Latch Height & Release: Cycle the mag to ensure positive latch and drop-free release.

  3. COAL & Bullet Profile: Test your longest planned cartridge for stack height and nose clearance.

  4. Live-Fire Proof: Validate feeding from full and partial stacks with your hunting or match ammo.

Care & Maintenance

  • Clean Regularly: Pop the floorplate, remove the spring/follower, and wipe dust or fouling.

  • Light Lube Only: Avoid heavy oils that attract grit—use a dry film or very light protectant if needed.

  • Inspect Edges: After drops or impacts, check feed lips and floorplate for dents; dress lightly if required.

SEO Highlights (Copy & Paste)

  • MDT .300 Win Mag 5-round magazineAICS 3.85" (CIP) long action

  • Black metal magazine for .300 Winchester Magnum

  • Fits AICS-pattern chassis/bottom metal that support 3.850" mags

  • Model 102088-BLK / 102088BLK, UPC 723905910792

  • Reliable feeding, anti-tilt follower, corrosion-resistant finish

Frequently Asked Questions

Q: Will this magazine fit my 3.715" AICS long-action bottom metal?
A: No. This is the 3.850" (CIP) length. If your rifle is 3.715-only, select the correct 3.715" magazine.

Q: Can I run 7mm Rem Mag or .338 Win Mag in this mag?
A: It’s engineered for .300 Win Mag. Some cartridges in the same general family can work, but you must verify feeding, COAL, and reliability in your rifle.

Q: Is the body steel or polymer?
A: This model uses a metal body with a protective black finish for durability in harsh conditions.

Q: Does it require break-in?
A: Most users see reliable operation immediately. As with any mag, cycling and a light clean can help if new springs feel tight.


Safety & Compliance

Always use magazines and ammunition that match your rifle’s chambering. Confirm function at the range before hunting or match use. Follow all local laws regarding magazine capacity and transport.


Confident feeding, durable construction, and CIP-length flexibility—optimize your .300 Win Mag with the MDT 3.85" AICS-Pattern 5-Round Magazine (102088-BLK / 102088BLK, UPC 723905910792) and get the reliability and room your long-action setup deserves.

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