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Specna Arms CNC M4P Hop-Up chamber - PRO M4/M16

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€72.04
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€72.04

Rotary Hop-Up chamber engineered for compatibility with M4/M16 carbine replicas. Crafted from aircraft-grade aluminum and precisely manufactured using CNC machines. Developed through a partnership between Specna Arms and Maxx Model Products.

Chamber supports a wide range of Hop-Up rubbers with different hardness levels. The CNC Delrin Locking C-Clip system eliminates vibration and movement at the muzzle. Dual compression springs ensure a stable installation in the replica. Supports nozzles with lengths from 21.00 to 21.25 mm. Additionally, there’s an option to mount a BB tracer (not supplied in the kit).

Designed for M4/M16 carbine replicas built to the Specna Arms and Tokyo Marui standard (incompatible with KWA), using the V2 gearbox.

Set contains:
- CNC chamber equipped with BB Latching system,
- transparent vinyl CNC shield,
- 2.5 mm brass CNC side wing,
- CNC steel Pivot Pin,
- CNC aluminum HopUp arm,
- CNC aluminum Soft Round Nub,
- CNC aluminum Soft Flat Nub (4 mm),
- CNC aluminum Hard Concave Nub (4 mm),
- steel Nub Spring,
- CNC steel spring guide,
- steel upper compression spring,
- steel central compression spring,
- CNC Delrin Locking C-Clip,
- CNC brass Barrel Spacer,
- brass Spacer Holder Oring,
- CNC aluminum adjustment dial,
- CNC aluminum Inlet Adaptor (11 mm),
- CNC brass Inlet Spacer.

Technical data
Material: 6061 aluminum
Color: Blue
Length: 51.65 mm
Height: 37.75 mm
Outer diameter of the chamber on the gearbox side: 11 mm
Outer diameter on the barrel side: min. 12 mm
Inner diameter on the nozzle side: max. 8 mm
Outer diameter of the BB feeder (to magazine): min. 8.85 mm
Feeder length (to magazine): max. 6 mm
Weight: 20 g
Manufacturer: Specna Arms/Maxx Model Products

Specna Arms


Militaria.pl is a premium dealer of Specna Arms.


Specna Arms is a brand specialized in the production of ASG replicas, valued for their solid workmanship and value for money. The offered models are characterized by realistic appearance and high durability. The range includes a variety of series - from lightweight CORE™ models for beginners, through advanced EDGE™ models with metal bodies and licensed markings, to top PRIME™ replicas with brushless motors and modern electronics. The brand collaborates with renowned companies such as Rock River Arms and Daniel Defense. Specna Arms has a reputation among both beginners and advanced airsoft players.

More Information
EAN 5902543990099
Manufacturer code MXM-08-035393
Brand Specna Arms

Reviews with photos

Review summary

Automatically prepared based on reviews

Number of reviews: 6

  1. P...
    100%

    There is no chamber like this one! In my M4, it works like a charm. The replica has gained new life. In the segment of these premium chambers, you can't go wrong, but well, that's expected. It's an absolute classic!

  2. N... Review confirmed by purchase
    100%

    I am very satisfied with the performance of the chamber used in the Specna Arms SA-P27 PRIME Aster II AEG replica. Both the barrel holding and the operation itself have improved the replica's performance. The chamber is definitely worth recommending to others.

  3. M... Review confirmed by purchase
    100%

    The color is great, it matches the Specna Arms SAEC receiver, and with the Maxx Model 21.25mm nozzle in the Orion V2 Gearbox, it provides excellent airtightness, and most importantly, the BBs don't fall out, which improves reaction speed in situations where quick magazine changes are crucial.

  4. R...
    100%

    It greatly improves the replica's performance, it's a solid and well-made product. The price is reasonable for the quality, and finally, the BBs don't fall out when removing the magazine. I highly recommend it to everyone.

  5. M... Review confirmed by purchase
    100%

    I highly recommend this hop-up chamber, well made, everything matches the description. It worked perfectly for me in a G&G replica along with a nozzle from the same manufacturer and an SHS head set.

  6. M...
    100%

    Very well-made chamber, seals the system perfectly. You need to remember to use it with a 21.25 mm nozzle.

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