UX SA10 CO2 4.5mm Pellet Blowback Air Pistol by UMAREX
The UX SA10 is one of the more unusual CO2 pistols out there. It mixes a heavy blowback setup with a multi-ammo system, meaning it can fire both pellets and BBs, even if that’s not something most people will actually do regularly.
It’s more about versatility and visual design than being a pure target pistol, with a few features you don’t normally see in this category.
Key Features
- Blowback action with metal slide
- Can shoot both 4.5mm pellets and BBs
- Slide cut-outs showing the internal barrel
- M14 CCW threaded barrel for suppressor-style accessories
- Magazine houses CO2 and includes spare rotary mags
- Single and double action trigger
Performance / Use Case
This is more of a “jack of all trades” setup. The ability to shoot pellets gives it an edge over standard BB pistols in terms of potential accuracy, while still offering blowback for a more engaging shooting experience.
That said, running both pellets and BBs isn’t really where it shines. Most users will end up sticking to pellets for consistency. The blowback does impact efficiency, so expect the usual trade-off there.
It’s best suited to casual shooting where versatility matters more than outright precision.
Build & Design
The metal slide brings the weight up to around 924g, which gives it a solid feel in the hand. The cut-out sections on the slide expose the brass-coloured barrel, which is more of a visual feature than a functional one, but it does set it apart.
The magazine design is practical, housing both the CO2 and the rotary mags, with spares included so you’re not constantly reloading. The threaded barrel adds some flexibility if you want to fit accessories.
Specifications
- Power Source: 1x 12g CO2
- Magazine Capacity: 8-shot rotary magazine
- Shot Capacity: approx. 60 shots
- Trigger: Single / Double Action
- Safety: Sliding safety
- Length: 230 mm
- Weight: 924 g
A slightly odd but interesting option. The dual ammo capability and included spare mags give it some flexibility, and the blowback keeps it engaging to shoot.
It’s not the most focused pistol in terms of performance, but if you want something a bit different that still covers the basics well enough, it’s a solid choice.




























