AirsoftParts air seal set for AK offers a cost-effective combination of upgrade parts for the air seal system of AKM / AK-47 AEG rifles and other AK-platform guns with inner barrels longer than 400 mm. The set includes a POM piston head, silent cylinder head, full ribbed cylinder and 19.8 mm nozzle. The individual parts form a matched set for improving the performance of your gun.

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ASPARTS102
AirsoftParts AoE shims for piston heads are designed for adjustment of the Angle of Engagement (AoE) between the piston teeth and sector gear in an AEG gearbox. The set contains 3 stainless steel shims with a thickness of 0.5 mm, which are installed under the piston head. By combining them, the piston position can be adjusted in fine increments to change...
ASPARTS121
AirsoftParts piston with full metal teeth combines a durable high-strength plastic body with a full metal rack with 14 teeth. The new Gen. 1.2 features a solid front section without lightening and weighs 15.6 g. The piston is designed for standard V2, V3, V6 and V7 AEG gearboxes and setups with springs up to M160.
ASPARTS125
AirsoftParts high-speed piston with full metal teeth is a lightweight AEG piston designed for setups where low moving mass and a fast operating cycle are important. The lightened high-strength plastic body is combined with a metal rack with 14 teeth. Thanks to 264 lightening holes, it weighs only 13.9 g and is designed for springs up to M140.
SPARMS439
Specna Arms silicone grease in a practical 50g package is an essential service lubricant for airsoft gun maintenance. It is particularly suitable for O-rings, seals, AEG pneumatic systems, GBB valves and HPA systems. It helps reduce friction, protects sealing components from drying out and extends their service life.
SPARMS444
Specna Arms silicone oil spray with a volume of 150 ml is a universal maintenance product for airsoft guns. The low-viscosity silicone oil easily reaches O-rings, seals, valves and moving parts, reduces friction and helps protect rubber and plastic components against drying out and ageing.
This expert product description was prepared by the ANAREUS.cz expert team. All rights to this unique content are tied to the anareus.cz domain.AirsoftParts air seal set for AK combines four important AEG air seal components in one cost-effective set. It includes a POM piston head, silent cylinder head, full cylinder and a 19.8 mm nozzle. This combination is designed for AK47-type AEG rifles and provides a practical solution when replacing a major part of the air seal system or building a new configuration. The full cylinder uses its entire working volume, while the piston head, cylinder head and nozzle form interconnected parts of the compression system. Proper operation depends not only on the air seal of the individual parts, but also on how well they match the specific gun and hop-up chamber. In particular, the 19.8 mm nozzle length should be compared with the original part before installation, as different AK models and manufacturers may use different air seal component dimensions.
The set combines a piston head, cylinder head, cylinder and nozzle, so the main interconnected air seal components do not need to be purchased separately.
The set includes a POM piston head that moves inside the cylinder and uses its seal to generate the required air pressure as the piston moves.
The silent cylinder head closes the front section of the compression chamber, and its design also helps dampen the mechanical impact of the piston assembly.
The full non-ported design allows the entire working volume of the cylinder to be used. Correctly matching the cylinder volume to the length and inner diameter of the barrel is important for efficient operation of the air seal system.
The set includes a 19.8 mm nozzle. Before installation, it is advisable to verify the required length for the specific combination of gearbox and hop-up chamber used in the AK.
The set is designed by the manufacturer for AK-type AEGs, but specific compatibility depends on the design of the particular model. It is especially important to verify the 19.8 mm nozzle length and the compatibility of the other components with the gearbox and hop-up chamber used.
The package includes a POM piston head, silent cylinder head, full cylinder and 19.8 mm nozzle. These are four interconnected components of the AEG air seal system.
The correct nozzle length affects how it works with the hop-up chamber and hop-up bucking. This set uses a 19.8 mm nozzle, so its dimensions should be compared with the original part or the requirements of the specific gun before purchase.
The AK47 version includes a full cylinder and 19.8 mm nozzle, while the AirsoftParts M4 set uses a ported cylinder and a 21.4 mm nozzle. The correct version must therefore be selected according to the design of the specific AEG.
| Variants | AEG AK |
| Color | Silver |
| Body/receiver material | Metal |
| Gearbox version | V3 |
| Piston head | Plastic |
| Nozzle | Metal |
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