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Specna Arms SA-B02 Assault Rifle Replica - MultiCam®

  • Upgraded version
  • Length: 700 - 785 mm
  • Weight: 2550 g
  • Color: MultiCam®
  • Material: Zinc and aluminum alloy, steel, polymer
  • Muzzle Velocity: ~410 FPS / ~310 FPS
  • Quick Spring Exchange System Enter & Convert™
  • Manufacturer: Specna Arms

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Specna Arms SA-B02 Assault Rifle Replica - MultiCam®
Manufacturer: Specna Arms
Product code: SPE-01-015818
Rating5/54.86 / 5 (29 reviews)
BlackHalf-TanMulticamA-TACS FG
Very small quantity of stock
Ready to ship in 3days
Cost from 2,42 €
244,31 €
244.31 / 1pcs
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Specna Arms SA-B02 Assault Rifle Replica

SA-B02 assault rifle replica by Specna Arms is made largely of a uniform zinc and aluminum alloy, reinforced with steel elements in the most vulnerable points of the replica (steel elements - all the screws, pins and tactical sling swivels). Both the SF stock storing the battery and the pistol grip were made of polymer. The receiver of the replica and the RIS handguard have undergone the process of anodizing, which guarantees a high degree of protection against corrosion. The paint was applied via a process of powder coating, after having the surface undergo the process of sandblasting prior to the application of paint. This provides a much higher than usual resistance of the applied paint to abrasion. The receiver bears USMC markings.

The replica’s parts are very well aligned - in a way that could be thus far noticed solely in replicas by such top-tier manufacturers as G&P or Classic Army, the replica is also perfectly balanced. This allows for an almost ideal maneuverability of the replica and its weight is almost unnoticeable once the replica has been shouldered. 

The replica features a
 quick spring exchange system, so-called Enter & Convert™. Due to that system, it is possible to rapidly and quickly adapt the power of the replica to the conditions expected on the playing field without the necessity to have the access to a workshop or a set of special tools - once the gearbox has been taken out of the replica’s body, the process of spring exchange lasts literally seconds.

The advantages of Enter & Convert™ system are hard to overstate. In the light of the current tendency in the whole Europe to use legal limitations regarding the muzzle velocity of replicas or internal regulations inside various groups, the system guarantees the User a varied set of possibilities and much freedom. Enter & Convert™ system allows
 with a minimal amount of time to exchange the main spring, thus to customize the muzzle velocity towards the area of the game in such a way so as to guarantee an ideal compromise between the effectiveness of fire and safety for the User himself as well as other participants.

The replica is fully compatible with LiPo and LiFe batteries. Due to the base muzzle velocity of ~410 FPS provided by the main spring installed by default by the manufacturer, the replica is perfect for operating on a medium range. The set also includes an
 M90 spring, which allows to reduce the muzzle velocity to ~310 FPS and as a result to adapt the replica for close-ranged and indoor operations.

The gearbox which is reinforced on the height of the cylinder’s head hides a steel main spring guide which is the element of the Enter & Convert™ system and also 8mm ball bearings and steel thread-wheels which are placed on spacers. The system is secured with the use of four anti-reversals. There is a type 2 cylinder and the steel breaker and a metal hop-up chamber applied in this replica.

The Upgraded Version is equipped with some new, improved internal parts:

- set of reinforced steel gears
- steel spring guide
- lightweight, polymer piston
- aluminum, sealed piston head
- metal cylinder head
- air seal metal nozzle

The replica is equipped with a 22 mm top RIS rail, Free Float RIS handguard and an adjustable stock. The top RIS rail features metal flip-up iron sights, which can be freely detached in order to make room for the attachment of a chosen optoelectronic aiming device. Due to the extendable stock with an anti-slip stock pad, it is possible to adapt the replica’s length to the body type and preferences of the User. Standard flash hider is based on 14 mm left-handed thread, which allows the attachment of a silencer in its place.

In order to enhance the realism of the game, the replica also features an operational bolt-catch mechanism.

The replica comes with a steel, 300 BB, Hi-Cap magazine.

Specna Arms replicas are compatible with many magazines available on the market, from manufacturers like:
 - BOYI,
 - Airsoft Systems,
 - SRC,
 - King Arms,
 - MAG, 
 - STAR,
 - ACM.

ATTENTION! The set does not include a battery or a charger. 

The set includes:

- replica
- magazine 
- fixed iron sights
- additional main spring


According to report number HKGEC1600157401, the product meets the requirements of European Union RoHS - Restriction of Hazardous Substances 2011/65/EU directive annex II as well as 2002/95/EC amending directive concerning the limitation of the number of hazardous substances in electronics.

Which means that Specna Arms free from harmful materials such as:
- lead
- mercury
- cadmium
- hexavalent chromium
- polybrominated biphenyl (PBB)
- polybrominated diphenyl ether (PBDE)

Tech specs:
Replika karabinka Specna Arms SA-B02 - MultiCam®
Specna Arms
12 months
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

~400 / ~310
Propulsion / Powered by:
Gearbox version:

Indications v2, v3, v6 does not mean the level of advance, but only shape of gearbox skeleton which was used and selected by the manufacturer depending on the capabilities of the body of the replica. For example, a models of the M4/M16 family, MP5, have a v2 gearbox, while the AK family have gearbox v3.

Modified v2 Gearbox
Type of fire:
Single, auto
Made of:
Metal + plastic + steel
Lenght [mm]:

The length of the replca is measured between the two most distant points of each other. Different models have several of these values, because of its design allows to increase or decrease it length (eg.  folding stock or extended flash hider).

765 - 798
Inner barrel length [mm]:
Weight [g]:

This is a value that includes the weight of the replica, magazine and other accessories that are include in set without a battery, charger, cleaning rod, etc., etc.

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.
NiMH batteries have a higher self-discharge over time and shorten the life - on the other hand, they earn about 30% more capacity.

Magazine type:
Hi-Cap magazine
Magazine capacity [pcs]:

Hop-Up system is used for overclocking bb during the shot (putting it in rotation), through which, it extends its flight path. Acting laws of physics make that bb lift up, while the gravitational force take it down. Appropriate adjustment of Hop-Up, will compensate for these two factors, which result in long and straight flight for longer distance and be greater focus shot (to improve accuracy).

Yes, adjustable
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.

Users reviews
Number of reviews: 29 Average rating: 4.86
Rate: Rate: 5
Author: Michael, Whitehills
incredibly surprised by this gun. great price and shoots very good. very well made strong weapon. overall very impressed. great buy
Rate: Rate: 5
Author: Jayvee, Drogheda
Full metal build and easily upgradable. Very impressed with the gun but just like the other people said get a new hop up and barrel and youll have a fantastic gun.
Rate: Rate: 5
Author: Grigori, Tartu
Very good replica from specna
Rate: Rate: 4
Author: Kim, Fredericia
I have used this gun for couple of weeks now, and it has really surprised me. Considering the ptice of the gun, it is extremely well made and precise. It shoots roughly 426 fps out of the box and has endless possibilities when it comes to accessories. Without a doubt one of the best guns for beginners
Rate: Rate: 5
Author: Jonathan, Hellevoetsluis
Amazing ! Shoots really well. Accuracy is great in combination with single and auto. Best buy !
Rate: Rate: 5
Author: John, Orpington
never had a problem with specna replicas . great guns for great prices
Rate: Rate: 4
Author: Boyan, Sofia
The hop up bucking is rough and stiff, the nub is terrible, the cogwheels are lame plastic and a bit shifty (but they seem kind of to be doing the job). Overall the hop-up unit is bad. I changed the nub and the bucking + a precision barrel and I am very happy with the result [6.03 barrel and a MadBull Shark bucking + nub (red bucking)]. Everything else on the gun I like, except the buttstock, which is the cheapest stock possible, however it doesn't really bother me. I recommend the gun, if you have money for some extra adjustments (about 30 euro did it for me)
Rate: Rate: 5
Author: Alwin, Rockanje
I'm very possitive! Super Airsoft "gun" en gunfire is very fast with delivery. Package of the product is very nice done of Gunfire.
Rate: Rate: 5
Author: Attila, Budapest
I love it
Rate: Rate: 4
Author: David, Den Haag
Hop up turns itself off, screws are very sensetive to damage so must be very carfull otherwise you must drill them out. Other then that its great. 3.5/5
Rate: Rate: 5
Author: Róbert, Budapest
This gun is better than the others for this price. This gun have a full metal body instead of dboys.I truly recomend it.
Rate: Rate: 5
Author: Arnoldas, Panevezys
Two words: Love it!
Rate: Rate: 5
Author: Palomba, Lodelinsart
sturdy and very nice m4 cqb love it
Rate: Rate: 5
Author: Peter, Oosterhout (nb)
I can recommend this M4 to everyone: it's a full metal version for a great price with a very good finish. It took some time to figure out how to install the M90 spring, but after some searching on YouTube and with the right tools it's perfectly doable (though you really need to be handy with tools and mechanics to perform it yourself). All in all a great buy!
Rate: Rate: 5
Author: Ruben, Riel
Hi this is a great gun feels good and is not wobbly although the selector plate broke at first time opening the replica to exchange the spring The fire selector needs to be in semi before taking gb out. The rest of the gun is great
Rate: Rate: 5
Author: Sylvain, Villers-lès-Nancy
Nice job Gunfire ! This is really a nice gun and the look is just perfect :) . The gears need some grease ^^' and the barrel is a bit too large but... I am satisfied !
Rate: Rate: 5
Author: Henry, Assen
I don't think you will find a better M4 replica in this price range with these features. Almost full metal, good internals. Shoots straight and far!
Rate: Rate: 4
Author: Gábor, Eger
SA B02 is made of hi quality metal which is a good point for the manufacturer. The quad rail is wobbling a bit, but it's OK. It has silicone wiring. I have one problem with this which is the "functional" bolt catch lever which is even not working therefore I am a bit dissatisfied. In conclusion it's a very good and strong replica but it has these annoying problems.
Rate: Rate: 5
Author: Damir, Trbovlje
I am very satisfied with this gun!
Rate: Rate: 5
Author: J.G., BALKBRUG
The Specna Arms SA-B02 is surprisingly good. It shoots 405 fps out of the box, so for Holland you need to reduce it to below 360 fps. The other spring is to weak, it shoots around 300 fps. Good quality, great looks. One Fun Gun!!!
Rate: Rate: 5
Author: Peter, Berkel-Enschot
Great price! Good gun Outside is very high quality metal but the internals could use some more metal. Even the nozzle is plastic without an o-ring.
Rate: Rate: 5
Author: Jevgeni, Tallinn
Exellent made gun for this price,highly recommend to buy it. But be prepare to change hop-up bucking,sometimes it doesnt work properly because of its design :)
Rate: Rate: 5
Author: Bruno Moreira, Figueiras - Lousada
good quality gun, shoots nicely, good feeding from the mags .... highly recommended
Rate: Rate: 5
Author: Nicolas, Voiron
Change the hop-up for a Guarder or Prom and you have a really good gun.
Rate: Rate: 5
Author: Joao, Aljustrel
Great quality/price ratio, Sturdy, balanced weapon. Heavier than I thought. The stock's cap its a bit loose, but other than that, nothing to report. An ideal weapon for someone to begin playing. Never heard of Specna Arms before purchasing this replica, now I'm a fan.
Rate: Rate: 5
Author: Volodymyr, Szigetszentmiklos
Hey! Any idea from what material body made of?
Rate: Rate: 5
had small problem with trigger, but its easy to fix. shoots perfect, looks cool. nice rof with 11.1v.
Rate: Rate: 5
The gun is very good, rear ironsight could be better made, hop up needs to be adjusted after every 50 shots, but its polible to mend it at home by tightening the screw. sounds good when fired. the jamming rod was missing, but thats no big deal as i have another one. in total gun is very good and price - deal of the year.
Rate: Rate: 5
Author: Thomas, TRELISSAC
great peace of kit full metal even the flash hider,i realy recomend it to any body pro or not
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