Maxim Defense PDX-SD 5.5" AEG assault rifle (Aster SX)
This replica from Vega Force Company was produced under licence from Maxim Defense.
Maxim Defense is an American manufacturer of firearms and tactical accessories. The company specialises in the design of compact carbines, silencers and innovative stocks and buffer systems, intended for both the civilian market and military and uniformed services.
The PDX-SD is a replica characterised not only by its compact dimensions but also by a very interesting, aggressive design. The model shown features a built-in ETU Gate ASTER SX module
- ‘Hair-Trigger’ sensitivity adjustment – up to 60 settings within the first millimetre of sensitivity
- Programming of ETU functions via the trigger, USB link or Blue-link
- Automatic pre-cocking
- Software updates
- Very low power consumption – 0.29 mA in deep sleep mode
- Compatibility with brushless motors
- Low-voltage operation – down to 1.2 V
- Supports Infinite Torque-up, DSG, SSG, standard sprockets and 19-tooth sprockets
- Built-in step-up converter
- Option to fit a mechanical trigger lock
The Maxim Defense PDX-SD is constructed primarily from aluminium and polymer.
The following components are primarily made of steel :
- QD mounting socket, bolt catch, fire selector, ejection port cover, dummy bolt carrier, lock and stock guide
The following are made of aluminium:
- The dummy silencer, the M-LOK handguard with the top RIS rail, the hand-stop grip, the receiver, the rear RIS rail, the reloading levers and the stock.
Made from durable polymer :
- The ergonomic pistol grip (licensed by BCM) and the magazine.
Importantly, the cables in this replica are routed to the front. The connector, along with the battery compartment, is located within the dummy silencer.
During testing of the replica, a 1-cell battery measuring 115x15x15 mm was used
Inside the replica, you’ll find, amongst other things:
- ECS V2.1 gearbox with a quick-change spring system
- 8 mm ball bearings
- Reinforced piston with 7 steel teeth
- Reinforced hammerpet plate
- ETU Gate Aster SX system
- Precision-machined steel pinions
- Steel spring guide
- Rotating hop-up chamber
product features - Maxim Defence licensed replica
- Licensed BCM Gunfighter Grip Mod 3 pistol grip
- Licensed markings on the receiver, receiver housing and stock
- Ergonomic pistol grip
- Lightweight, compact design
- Factory-fitted Aster SX
- M-Rax hand stop
- Licensed Maxim Defense SCW stock
- Sound suppressor doubling as a battery compartment (DSX Suppressor)
- Functional bolt catch
- Ambidextrous reload lever
- Ambidextrous fire selector
Package include:
- Mid-Cap Magazine
- Replica
- Small Tamyia - Deans adapter
- BBs speedloader
Package exclude:
- The set does not include the battery nor charger
Battery included![]() NiCd
rechargeable battery is characterized by high efficiency
current-carrying capacity, but there are disruptive effect on memory.
Should be unloaded and loaded in the full cycle, ie, it is recommended
to fully discharge, and after unloading must charge the battery
immediately without leaving it for a long time in a discharged state. | No |
Blow Back![]() Blow back is a simulation system of the cocking lever - it imitates the work of it as the equivalent sharp. This system raises the realism and adds a lot more experience during shooting. | No |
| Colour | Tan |
| Product length [cm] | 73.50 |
| Product weight [g] | 2755 |
| Power supply | Electric |
| Material | Aluminum Plastic |
| Made of | Steel |
Muzzle velocity [FPS]![]() It is the spped of bb, while its leaving the innerbarrel of replica. This speed is measured in FPS (Feet Per Second). 1 FPS = 0,3 m/s 1 J = 99 m/s 1 J = 326,7 FPS | 420 |
| Fire mode | Full-auto Adjusted burst Semi-auto |




