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Hop-up chamber PK-424 LCK AK by LCT in black is a rotary chamber designed for airsoft LCK AK type rifles with a Version 3 gearbox. It provides precise and stable hop-up pressure adjustment and is designed exclusively for LCT LCK AK models.

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PK-424 is a new type of rotary hop-up chamber that ensures smooth and precise BB pressure adjustment. Compared to traditional lever-style systems, it holds its setting more reliably even during extended shooting. The chamber is made from durable polymer, combining low weight with long service life. It is fully compatible with LCT LCK AK rifles and the LCT PK-425 AEG hop-up bucking.
Precise and smooth hop-up regulation without unintended loosening.
Lightweight and solid construction built for long-term use.
Designed specifically for LCT LCK models with Version 3 gearbox.
| Color | Black |
| Hop-Up chamber material | Plastic |