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The Area 419 Plus 4 in gold is engineered for precision rifle shooters who need reliable capacity increases without the feeding issues that plague generic rectangular extensions. Most mag extensions on the market are flat blocks that sit at an angle to your magazine, which works fine for adding 2 rounds but fails with anything more. Area 419 took a different approach, cutting the attachment rail at an angle to match your magazine's geometry. This means cartridges feed straight down into the extension instead of fighting an angle.
The design includes fluting on the sides that serves double duty: it gives you a solid grip point during mag changes and reduces overall weight. Installation takes minutes with the included screw and Allen wrench. Users report smooth, flawless feeding across various platforms and chamberings, including long-range competition setups that demand consistency.
This extension works with ARC 10-round mags, AICS 5 or 10-round mags, and Accurate Mag in standard bolt face or SAUM/WSM configurations. Actual capacity increases vary by cartridge and base magazine. A 10-round mag typically becomes 13-14 rounds depending on your caliber. MDT metal AICS pattern mags work too, though MDT recommends pairing them with their longer spring kits. Not compatible with AI AW magazines due to welded floorplates or Magpul polymer mags.
Many competitors choose these for precision rifle matches where extra rounds eliminate the need for separate round holders. The added weight also helps magazines drop free when seated. Spring tension behaves predictably since the column of rounds maintains proper pressure from start to finish. Installation simply requires stretching your magazine spring slightly to ensure it maintains tension through the full extension.
Yes, it works with MDT metal AICS pattern mags, but MDT recommends purchasing their longer spring and follower kit separately for proper feeding. The stock mag spring may not provide enough tension through the full extension.
Capacity increase depends on your base magazine and cartridge. ARC 10-rounders typically gain 4-5 rounds, AICS 5 or 10-rounders gain 3-5 rounds depending on case length, and Accurate WSM mags gain 3 rounds. Longer cartridges will result in smaller gains than shorter ones.
Installation is straightforward and takes just minutes. It slides onto the magazine and is secured with one screw. You'll want to slightly stretch your magazine spring to maintain proper tension, but this is something any user can handle without special tools beyond the included Allen wrench.
Magazine bodies are angled at the bottom, and a simple rectangular block sits at an angle to your cartridges. Area 419 cuts the attachment rail at an angle to match your magazine, which keeps rounds feeding straight down instead of fighting against the geometry. This design is essential for reliable feeding with extensions larger than +2 rounds.
| UPC | 853675008853 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 419-MAG-EXT-GOLD |
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