KWC K18 CO₂ Blowback BB Pistol
A KWC Model 20-series 4.5 mm CO₂ pistol with a metal slide, full blowback, 18-round magazine, fixed hop-up and selectable semi-automatic or full-automatic fire.
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Why this product
The K18 combines a polymer frame with a moving metal slide, keeping total weight to 755 g while retaining full blowback. A trigger safety, fixed hop-up and accessory rail round out the Model 20-series layout.
KWC documents both semi-automatic and full-automatic modes. That capability makes deliberate handling essential: use it only for controlled recreational target shooting on a secure range with a reliable steel-BB backstop.
Specifications
- Manufacturer SKU
- AAKCMF202AZB
- Calibre / projectile
- .177 / 4.5 mm steel BB
- Power source
- 1 × 12 g CO₂ capsule
- Fire modes
- Selectable semi-automatic / full-automatic
- Trigger
- Single action with trigger safety
- Capacity
- 18 rounds
- Muzzle velocity
- Up to 96 m/s
- Muzzle energy
- Up to 1.6 J
- Construction
- Metal slide, polymer frame
- Blowback
- Full blowback
- Hop-up
- Fixed
- Length / weight
- 205 mm / 755 g
- Accessory interface
- Weaver-style rail
What stands out
- Selectable semi/full-auto modes
- Metal blowback slide
- Fixed hop-up
- 18-round CO₂ magazine
Use it responsibly
- Adult or directly supervised use only
- Use eye protection and a secure ricochet-resistant backstop
- Never point at people or animals and never display in public
- Keep CO₂ below 50°C; store the pistol unloaded in a locked case
How we checked it
Specifications were checked against manufacturer material where available, then compared with Nishana's inventory photographs and clearly identified retailer documentation. Your supplied manual and physical product markings take precedence if a production batch differs.
Product research reviewed 2026-07-21