Description
The MDT 338LM Metal Magazine (part 102089-BLK) is a 5-round AICS-pattern long-action magnum magazine in the 3.850 in CIP length, made for the 338 Lapua Magnum in chassis and bottom metal cut for the CIP magazine well. It is formed from high-strength steel, nitrided and finished with Cerakote Elite for durability and smooth feeding, and accepts cartridges up to 3.740 in overall length. MDT lists it for the 338 LM; it does not fit the 4.050 in magazine well used by some MDT long-action chassis, Remington 700 tactical bottom metal built for the 3.715 in magazine, or the 300 RUM / 300 Weatherby. Tikka T3/T3x and Savage Axis owners need MDT’s 3.560 in magazines instead.
Key features
- 5-round capacity, 338 Lapua Magnum
- 3.850 in CIP magazine length, 3.740 in maximum cartridge overall length
- High-strength steel, nitrided, Cerakote Elite finish
- AICS long-action magnum pattern
- Not for 4.050 in magazine wells, 300 RUM or 300 Weatherby
- Colour: Black. Part number 102089-BLK
Frequently asked questions
Which magazine well does the 3.850 fit?
Chassis and bottom metal machined for the 3.850 in CIP long-action magnum magazine. MDT also makes 3.715 in and 4.050 in versions for other wells — check yours before ordering.
What is the maximum cartridge length?
3.740 in overall length in the 3.850 magazine.
Will it work in a Tikka T3x?
No. Tikka T3/T3x and Savage Axis chassis use MDT’s 3.560 in magazines.
Specifications from MDT (mdttac.com).
Magazines are supplied by 3 Gun Tactical, Licensed Firearms Dealer 50001578, Tingalpa QLD. Magazine capacity and possession rules differ between Australian states and territories and may require a firearms licence or permit — check your state’s rules before ordering.





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