MDT | AICS .223 REM MAGAZINES
Lightweight, Reliable .223 Feeding.
The MDT Gen2 AICS Polymer Magazine holds 10 rounds of .223 Rem / 5.56 NATO in a double-stack, single-feed design. Molded from high-glass-content polymer with a tempered steel spring, it's light, tough and built to feed reliably in AICS-pattern chassis and bottom metal. This is the current generation of MDT's .223 polymer magazine, replacing part number 102231-BLK.
A .223 bolt gun is one of the most versatile rifles you can own, whether you're training for PRS, chasing varmints or running a lightweight trainer. MDT's polymer AICS magazine keeps it fed without adding weight. The high-glass-content polymer body stands up to drops and hard use, and the double-stack, single-feed design presents each round consistently to the chamber.
Built for AICS Chassis and Bottom Metal.
MDT guarantees compatibility with its XRS, TAC21, LSS, LSS-XL, HS3, ESS and ACC chassis systems. It also works with many other AICS-pattern chassis and bottom metals, though some, including XLR chassis, certain KRG X-Ray chassis, GRS stocks and CDI Precision or Pacific Tool and Gauge bottom metal, may require minor fitting. Maximum cartridge overall length is 2.44 inches.
Replacing an older MDT .223 magazine? The 106539-BLK is the current Gen2 version of the earlier MDT 102231-BLK .223 10-round polymer magazine, so it's the one to order when you're adding to or replacing a set of 102231-BLK magazines.
Complete Your Setup.
Running a .308 or 6.5 Creedmoor rifle too? The MDT AICS Polymer 10-Round .308 / 6.5 Creedmoor Magazine and the slim MDT AICS SA Flush-Mount 3-Round use the same proven design. Add a fast-deploying bipod like the MDT GRND-POD M-LOK or the MDT Ckye-Pod Gen3 Compact, and browse more upgrades in our Remington 700 Parts & Upgrades Collection.
Product Specifications
Manufacturer: MDT (Modular Driven Technologies)
Product: Gen2 AICS Polymer Magazine
MPN: 106539-BLK
Replaces: MDT 102231-BLK (Prior Generation)
Caliber: .223 Rem / 5.56 NATO
Capacity: 10 Rounds, Double Stack, Single Feed
Material: High-Glass-Content Polymer, Tempered Steel Spring
Max COAL: 2.44 Inches
Dimensions: 2.400" Internal Length, 3.055" External Length
Color: Black
Guaranteed Fit: MDT XRS, TAC21, LSS, LSS-XL, HS3, ESS and ACC Chassis
Frequently Asked Questions
Compatibility, prior generations and choosing the right AICS magazine.
Is this the replacement for MDT 102231-BLK?
Yes. The 106539-BLK is the current Gen2 version of MDT's .223 10-round polymer AICS magazine and replaces the prior-generation 102231-BLK.
Which chassis and bottom metal does it fit?
MDT guarantees fit in its XRS, TAC21, LSS, LSS-XL, HS3, ESS and ACC chassis. Many other AICS-pattern systems work too, though XLR chassis, some KRG X-Ray chassis, GRS stocks, and CDI Precision or Pacific Tool and Gauge bottom metal may need minor fitting.
Does it fit Browning X-Bolt or Winchester inlets?
It is not compatible with Browning X-Bolt or Winchester XPC inlets, and Winchester Model 70 setups may require fitting.
What cartridges can I run in it?
It is built for .223 Rem and 5.56 NATO and other cartridges in the .223 family, with a maximum cartridge overall length of 2.44 inches.
Why polymer instead of metal?
Polymer keeps weight down and resists dents. MDT molds this magazine from high-glass-content polymer for strength and durability, with a tempered steel spring for consistent feeding.
Will it work alongside my older 102231-BLK magazines?
Both are MDT .223 10-round AICS polymer magazines designed for the same AICS-pattern systems, so the 106539-BLK is the right choice for adding to or replacing an older set.
Does MDT make this magazine for other calibers?
Small Change. Big Impact. Pete's Pillars.
