DS11 CO2 Non-blowback BB Pistol

Type: BB Rifle.
Manufacturer: Distributed by Umarex.
Model: DS11 1911.
Materials: Mostly plastic with some internal metal parts.
Weight: 1.06 pounds (481 grams).
Total Length: 8.86 inches (22.5cm).
Barrel: 4.5 inch barrel (11.3cm) smooth bore.
Propulsion: CO2.
Action: Semi auto NBB, DAO trigger.
Ammunition Type: 4.5mm steel BB's.
Ammunition Capacity: 18 round metal stick magazine.
FPS: Claimed 400.

Trigger Pull: The Umarex DS11 1911 NBB CO2 BB Pistol’s trigger feels exactly like you’d expect from a low-cost double-action-only CO2 pistol. The trigger does the heavy lifting. You’re pulling against a fairly stiff internal hammer spring (inside the barrel assembly) until it releases, snaps the hammer back, and opens the valve to fire. Run through the 18-round mag fast and your trigger finger will definitely notice.

Accuracy: For the chronograph test, we used a fresh 12-gram CO2 cartridge and standard 4.5mm steel BBs. The room temperature was about 20°C. I noticed the velocity seemed to climb slightly as the CO2 settled in, so we averaged out the last five readings for consistency. Those shots came in at 386, 383, 377, 385, and 377 fps, giving an average of 382 fps. That’s very close to the manufacturer’s claimed 400 fps, and we’d expect it to reach or even exceed that number under warmer conditions. Overall, the DS11 delivered solid and consistent power for a non-blowback CO2 pistol. Moving on to accuracy, we set up a target at 30 feet and fired from a semi-rested position, seated on a stool with our hands braced against a sandbag for stability. The Umarex DS11 1911 NBB CO2 4.5mm BB Pistol shot impressively well-centered right out of the box, which is a big plus since the sights are non-adjustable. Our 10-shot group measured about 2.5 inches, with several rounds landing right in the bullseye. With a bit more trigger time and familiarity with the gun’s feel, we are confident we could tighten that group even further.

Build Quality: The Umarex DS11 1911 NBB CO2 BB Pistol is constructed almost entirely from plastic, keeping its weight just over a pound. While it lacks the heft of a full-metal replica, the lighter build makes it more forgiving if dropped on a hard surface. The fit and finish are solid, and its two-piece design secured mainly from the left side features very few moving parts or controls, which should contribute to excellent durability and reliability.

Realism: The Umarex DS11 is styled after the classic 1911 with a modern tactical look. It uses a double-action-only (DAO) trigger that’s relatively long and a bit heavy, not the short, feather-light feel of a true single-action 1911 trigger. The barrel is recessed and the CO2 is neatly hidden in the grips, so at a glance it could pass for the real thing. Up close, however, there are giveaways: a molded hammer, molded safety and slide-release, visible screws along the left side, and a seam where the two halves joins.

Pros:

• Low price well under $100 Canadian.
• Shoots pretty decent, almost 400 fps and a nice 2 inch grouping fairly well centered out of the box.
• Decent looking Replica of a modern 1911 Semi Auto Pistol. A lot more detail than most base non block CO2 BB Pistol.
• Has a picatinny rail for adding accessories if you want to.
• Double Action Trigger is pretty decent, Not going to be a super-fast action shooter but it is manageable for a DAO trigger.
• Uses the standard all metal stick magazines found in most of these NBB CO2 BB Pistols.
• I like the cut out in the slide showing off the gold inner barrel and ejection port.
• Safety is not the typical on off style, more thought went into this one and it looks better too.
• Recessed barrel for added realism.
• CO2 tab is fairly well hidden.

Cons:

• Almost all plastic other than some internal metal parts like the barrel and spring and some other stuff I am sure.
• DOA triggers a bit heavy but about the same as other similar Airguns like this one.
• Sights are not adjustable and are all black with no white dots.

Comments: The Umarex DS11 1911 NBB CO2 BB Pistol is a more thoughtfully designed and better-looking 4.5mm CO2 BB NBB Airgun than the typical budget options. It uses the common metal stick magazine, which is convenient since you more than likely have a bunch lying around and you can keep several preloaded and spend more time shooting and less time reloading on site. It also ships in a proper box, which adds to the premium feel. In my test at the Replica Airguns Indoor Shooting Range it performed very well.