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The ProMag BRA04 delivers where it counts: capacity and reliability. This 10-round magazine designed for Bersa Thunder 380, Firestorm, Series 95, and 383A pistols gives you significantly more shots downrange than the factory 7 or 8-round options. The steel body is heat-treated and TIG-welded for durability, while the follower and baseplate are molded from DuPont Zytel polymer for smooth feeding. The magazine uses a precision-wound chrome silicon spring that holds its tension through every round.
The BRA04 isn't cutting corners on materials. The entire steel tube is heat-treated to resist deformation, which matters if you're running this mag hard at the range or depending on it for backup. The polymer internals aren't cheap plastic either. They're engineered to handle thousands of cycles without wearing out prematurely. Everything is made in the USA and comes with ProMag's lifetime warranty, so if something fails on you, they'll replace it.
Two extra rounds might not sound like much, but it adds up when you're at the range or in a defensive situation. The magazine features witness holes on the side so you can quickly see how many rounds you have left. One thing to note: the 10-round capacity means it'll stick out past the grip a bit when loaded. Some people use spacers to make it sit flush, but plenty of owners just accept it as the trade-off for the extra firepower. The extended baseplate doubles as a finger rest too, which helps with recoil control on a compact frame.
If you shoot a Bersa Thunder regularly and want to add affordable backup magazines to your rotation, this gives you options without breaking the bank. ProMag's magazines cycle reliably through standard practice ammo, making them solid for the shooting line. Just let it run through a few magazines of ammo if it feels stiff when you first get it, which is normal for new springs.
No. The higher capacity means the BRA04 extends below the grip by a half inch or so. This is by design to fit the extra rounds. Many owners simply accept this trade-off for the two additional rounds, while others use mag spacers or keep the mag as a range backup where the fit doesn't matter as much.
Most users report solid performance once the magazine has been through 50-100 rounds of break-in. The spring is stiff when new, which is normal and loosens up with use. The magazine feeds standard range ammo reliably. Feed performance can vary with bullet profile, particularly with some hollow points, so test what works best with your pistol.
The BRA04 is designed for the Thunder 380, Firestorm 380, Series 95, and 383A. It will not fit the Bersa 383 or 383DA models. Check your specific pistol's model number before ordering to ensure compatibility, as Bersa made several similar models with different specs.
ProMag backs every magazine against manufacturer defects for the life of the product. If the magazine fails due to a defect in materials or workmanship, you can return it and receive a replacement. This doesn't cover deliberate damage or unauthorized modifications.
| UPC | 708279001185 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | BRA 04 |
| Brand Fit | Bersa |
| Caliber/Gauge | .380 ACP |
| Capacity | 10 |
| Color | Blue |
| Model | |
| Model Fit | Thunder 380 |
| Product Type | Magazine |
| Shipping Weight | 0.2 |
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