Umarex UX 2011 CO2 Air Pistol (4.5mm BB, Gold Barrel)
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Sporty, modern Umarex UX 2011 4.5 mm (.177) CO2 air pistol engineered around the dynamic 2011 competitive platform. Features an eye-catching ported slide showcasing a gold-tone outer barrel, an 18-round BB magazine, and an integrated accessory rail. Its Non-Blowback (NBB) architecture maximizes gas economy, delivering up to 140 shots per single 12g CO2 cartridge at speeds up to 130 m/s.
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The Umarex UX 2011 (4.5 mm / .177 BB) is a modern recreational CO2 air pistol inspired by custom competition raceguns built on the double-stack 1911/2011 frame. Combining sleek lines with high gas efficiency, the UX 2011 features aggressive slide lightening cuts that expose an accent golden barrel, paired with a tactile hexagonal grip stippling pattern for reliable weapon indexation.
Powered by standard 12-gram CO2 capsules, the pistol uses a fixed Non-Blowback (NBB) drive system. By channeling all compressed gas directly into the breach rather than cycling a heavy slide, the UX 2011 delivers impressive velocity up to 130 m/s (427 FPS / under 3 Joules) and exceptional shot yields—producing up to 140 shots per cartridge. Its smooth Double Action Only (DAO) trigger eliminates the need to cock an external hammer manually, ensuring fast, repeatable split times on paper targets and reactive cans.
Constructed from high-tensile polymer, the frame is extremely resilient against drops, outdoor weather, and abrasion while keeping overall weight down to an agile 425 g. The dust cover incorporates an integrated 22 mm Picatinny rail section for rapid mounting of weapon lights or laser targeting modules, with an easy-to-reach manual safety lever securing the trigger bar.
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Contemporary 2011 Racegun Aesthetics: Ported slide paired with an anodized gold-tone barrel.
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High-Efficiency Non-Blowback System: Yields up to 140 consistent shots from a single 12g CO2 capsule.
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Substantial Muzzle Velocity: Up to 130 m/s (427 FPS) for flat trajectories at plinking distances.
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18-Shot BB Magazine: Drop-free stick magazine provides reliable feeding of steel BBs.
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Under-Barrel Picatinny Rail: 22 mm accessory interface for tactical flashlights and lasers.
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Ultra-Lightweight Handling: Tough polymer construction weighs just 425 g to eliminate wrist fatigue.
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Technical Specifications:
| Parameter | Value |
| Manufacturer | Umarex (UX) |
| Model | UX 2011 |
| Product Type | CO2 BB air pistol (Non-Blowback) |
| Caliber | 4.5 mm / .177 |
| Ammunition Type | 4.5 mm steel BBs |
| Power Plant | 1× 12g CO2 cartridge |
| Shot Capacity per Capsule | Up to 140 shots |
| Muzzle Velocity | Up to 130 m/s (427 FPS) |
| Muzzle Energy | < 3.0 Joules |
| Trigger Mechanism | DAO (Double Action Only) |
| Magazine Capacity | 18 rounds |
| Safety | Manual lever safety catch |
| Accessory Interface | 22 mm Picatinny / Weaver rail |
| Frame Material | High-strength polymer |
| Color Scheme | Matte Black with Gold outer barrel |
| Overall Length | 225 mm |
| Weight | 425 g |
| Permit Required | No (restricted to adults 18+) |
| Applications | Target plinking, dynamic backyard training, recreational shooting |
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