Area419 Area 419 Universal SA Magazine Extension Black for ARC and AICS Magazines 4/rd
$39.58
Area 419 Universal SA Magazine Extension Black for ARC and AICS Magazines
This extension is designed for AR15/AIM-style rifles chambered in calibers such as 300AACNSW, 238WE, etc., and features an angled attachment rail for secure magazine attachment. Engineered to work specifically with Area419’s own magazines, this extension eliminates the issue of parallel attachment rails common in other products.
Out of stock
In Area419's opinion these are the only correctly made mag extensions on the market. Other magazine extensions on the market are simply rectangular blocks. If you look at your magazine the bottom is angled so when you attach a competitors extension it is not parallel with the column of cartridges in the magazine. This probably works fine for +2 rounds but it would not work for much if any more. Area419 decided to do it right and cut the attachment rail at an angle to the pocket in the mag. This means that the column of rounds travels straight down into the extension. This took extra time on the mill and they chose to cut them in one operation on the 4th axis but it was worth it to deliver to you the most advanced product of its kind. The fluting around the sides make an excellent gripping point for mag changes and also helps to remove some weight.
After starting with the American Rifle Company +4 mag extension Area419 realized that with a little bit of redesign that it could work equally well with AICS an Accurate mags. The 419 universal mag extensions are designed to work on a variety of magazines from the ARC 10rd mag to AICS 5 or 10rd and Accurate Mag in either standard bolt face or on SAUM/WSM mags. They are NOT COMPATIBLE with AI AW magazines as those have a fixed/welded floorplate.
Easy install great performance and the quality you’ve come to expect from Area 419.
Expected Capacity Increase:
ARC 10-Rounders: +4 or +5 depending on cartridge
AICS & Accurate 10 Rd: +3 or +4 depending on cartridge
AICS & Accurate 5 Rd: +2 or +3 depending on cartridge
Accurate WSM 3 or 7 Rd: +3
NOTE: **THESE DO NOT WORK WITH MAGPUL OR ANY OTHER POLYMER AI MAGS**
| Weight | 0.360 lbs |
|---|---|
| Dimensions | 6.000 × 3.500 × 1.750 in |
| Manufacturer | Area419 |
| Finish | Black |
| Material | Aluminum |
| Compatible With | ARC and AICS Magazines |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.
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