MDT Mag Extender for Metal Magazines

Marsoni

M251S

$16.99

Get it in 3 business days with 1 day shipping. Friday, May 29

MDT Mag Extender for Metal MagazinesProduct details Add +2 capacity to your AICS metal short action magazines and gain an advantage in high round count competitions. Lightweight and durable, only minutes to install. COMPATIBILITY Tested and compatible with MDT, AICS and Accurate Mag AICS pattern 3. 050 length metal magazines. IMPORTANT NOTES When used with MDT 10 round metal magazines, a longer spring follower combination must be used (available separately on the MDT website), as the

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MUCH better than the cheap plastic OEM part, Just a reminder though, these thread into an aluminum block so be very careful to start them finger tight first, then evenly tighten both bolts to push the fitting into the chamber. If you don't, it will slightly misalign and you run the risk of stripping the threads. The one comes with the replacement o ring, and be sure to get some antifreeze on that seal prior to attempting to push it into the chamber. IT IS A TIGHT FIT, but that's what you want, so just be careful. You might also want an extra hose clamp on hand, as the one that came with this began to bend as it got tight, so I had to replace it for peace of mind. Overall, great product though.

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Reviewed in the United States on January 9, 2026