Umarex SA10 Blowback BB/Pellet Gun

Manufacturer: Umarex.
Type: BB Pistol, Pellet Pistol.
Model: SA10.
Materials: Metal & Polymer.
Weight: 2.05 pounds (930 grams).
Barrel: Metal rifled.
Propulsion: 12g CO2 x 1.
Action: Semi-auto blowback, single & double action.
Ammunition Type: .177 caliber pellets & 4.5mm steel BBs.
Ammunition Capacity: 8x4 round rotary full-size drop-out metal magazine.
FPS: Claimed 420.

Trigger Mechanism: The trigger mechanism on the Umarex SA10 CO2 Blowback Pellet and BB Pistol aligns with the common characteristics found in rotary magazine pellet pistols. The blowback feature cocks the hammer, facilitating a lighter single-action type trigger pull. However, the length of the trigger pull mirrors that of a double-action mode. While the hammer is cocked, the trigger requires less force, though the initial part of the pull rotates the magazine.

Performance Test: In our standard indoor Sea Can Field Test Shooting sessions, velocity is tested first. The Umarex SA10, capable of firing both 4.5mm Steel BBs and .177 caliber pellets, was tested with both types of ammunition using a Chrony Chronograph. Three shots of each were fired to calculate an average fps velocity. Notably, the 6.9-grain lead pellets achieved a higher average velocity of 376 fps compared to 304 fps with the 5.1 grain Steel BBs, likely due to a tighter barrel fit preventing CO2 leakage and generating more back pressure. In the accuracy test, .177 caliber lead pellets achieved roughly a 2-inch grouping over eight shots. The majority of these shots were tightly grouped within a half-inch, with three outliers stretching the group vertically. Using steel BBs widened the groupings to about 3 inches, with one shot significantly off-mark, though the shots remained generally centered.

Construction Quality: The Umarex SA10 exhibits excellent balance and solidity. It features a metal slide and polymer frame, alongside numerous internal metal components and a full-size, drop-out metal magazine. The craftsmanship, from fit to finish, is commendable.

Design Authenticity: While the Umarex SA10 doesn’t replicate a specific real steel firearm, its design shares similarities with a Sig Sauer, incorporating unique elements. It boasts authentic features such as blowback action, a comprehensive drop-out metal magazine, an open barrel design, and field-strip capability, enhancing its realism.

Pros:

• Impressive weight and build quality.
• Equipped with an accessory rail for attachments.
• Innovative magazine design supports quick reloading and the choice between Steel BBs or pellets.
• Rifled barrel for improved accuracy.
• Aesthetic gold barrel with a detachable tip for accessory options.
• Integrated slide catch and safety feature.
• Simplified field stripping process.
• Subtle warning labels.

Cons:

• Lacks adjustable or highlighted front sights.
• Decorative trigger safety.
• Not modeled after a specific real firearm.

Comments:

Anticipation for the Umarex SA10 CO2 Blowback Pellet and BB Pistol was high, and initial impressions suggest a well-constructed airgun, pending further testing. Despite typically favoring replicas, the SA10's design and functionality are appealing, including the distinctive magazine and the flexibility to use both Pellets and BBs.

Buy the Magazine: UMX2252114.

Umarex SA10 Blowback BB/Pellet Gun: Manual.