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APS Full Metal M4 CQB Electric Blowback Airsoft AEG Rifle w/ Crane Stock (Newest Version)

ID: 33793 (AEG-ASR104)
APS / Hakkotsu33793
4.7 stars, based on 15 reviews
APS Full Metal M4 CQB Electric Blowback Airsoft AEG Rifle w/ Crane Stock (Newest Version)
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note: The 2014 APS gearbox no longer comes with a MOSFET


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*note: The 2014 APS gearbox no longer comes with a MOSFET
The new 2014 APS M4 models come with APS's newest Generation 3 Version 2 gearbox with reinforced internals, gearbox shell, quick change spring and much more! Factory tuning has also been improved for an overall better performing rifle.

The APS M4 series are loaded with features such as full metal construction, functional mock bolt stop, simulated recoil, and the ability to quickly swap springs without fully disassembling your gearbox. You will get all the features and performance of a premium AEG without the premium price tag.


  • Full metal body
  • Electric blowback action
  • Full metal front rail system for all of your tactical accessories
  • 6 position retractable crane stock
  • Removable rear sight
  • Adjustable front & rear sights
  • Knight's type trigger guard
  • Functional mock bolt stop for easy access to hop-up controls
Length: 800mm - 8840mm (Adjustable)
Weight: 2900g
Inner Barrel Length: ~370mm
Gearbox: Version 2
Muzzle Velocity: ~360-380 FPS
Magazine: 300 rd Hi-cap magazine
Package Includes: Gun, Hi-cap Magazine, Manual, Unjamming rod.
Motor: Long Type
Thread: 14mm+ (Positive)
Battery: 9.6v 1600mAh Butterfly Type Recommended (not included, wired to the front w/ small Tamiya)
Fire Mode: Full/Semi Auto, Safety

Manufacturer: APS / Javelin

Things you may need to get started:
    Battery and Charger – Required to power your AEG; use a high quality battery and charger for best results.

    Spare Magazines – Stay in the fight longer by bringing more ammo with you.

    BBs – High quality precision 6mm BBs recommended; Use 0.20g – 0.25g BBs for best results.

    Silicone Oil – Basic cleaning and lubrication maintenance help keep your Airsoft AEG in top working order.

FPS Range: 360-380

California residents click here for Proposition 65 warning

15 Customer Reviews

(Write a review)

by Marty G. on 01/19/2018
"I bought this gun as a beginner tech project gun, as it was relatively affordable and I was looking for something with a full metal body with RIS.


The Box - It was packaged decently, arrived in a nice APS cardboard box with a plastic handle, so if you don't own a gun bag yet, you can still take it to the field while not carrying it around in the open.

First Impressions - It felt solid from the barrel down to the buffer tube. The crane stock wobbles and does not have the capability to house a crane-stock-type (nunchuck) battery, if you plan to wire to the rear. I was, however, impressed with how solid the RIS rails were. Zero Wobble on my gun. The delta-ring is an actual star type delta-ring, so I recomend getting a delta-ring wrench, if you intend to do any maintaining involving its removal. The listing says that the outer barrel muzzle thread is 14mm pos (+), but mine came in 14mm neg (-). I don't know if APS does both to some guns or not.

The Rails - Sturdily mounted, they exhibit no wobble, which made for a nice mounting option for my m203, as opposed to barrel mounting it. Since this gun is front wired, you have to mount your battery up front. I tried getting my Matrix Butterfly-Type 9.6v 1600mah NiHm battery to fit inside the rails, but no considerable luck. I soon bought a large mock PEQ-box to house my batteries.

The Bolt Catch - I had never owned an airsoft aeg with a functional bolt catch, and I was suprised to see it featured on this aeg. However, it is a bit jenky, and you have to manually pull the bolt catch lever from the top (while you pull the charging handle) to engage the lever into the bolt catch notch on the immitation bolt.

The FPS - When I first chrono'd it (using a 9.6v Butterfly-Type Batt), it was shooting a consistent 399-400FPS (field reg is 350FPS). Luckily, this gearbox has a quick change spring (qcs) feature!

Electric Blowback - is cool, and sounds awesome, extra friction and pressure on the piston is not, so APS have made the immitation bolt easy to disable, or remove. If you remove the imitation bolt, your charging handle will wobble/possibly fall out.

The 370mm Stainless Steel Inner Barrel - is crowned well, and the polished finish was immaculate. It came with 2 o-rings on the end to help reduce barrel wobble. A nice touch. The Hop-up is decent, and impressed me, as I seldom ever had to touch it after adjusting it the first time.


The QCS - feature makes gearbox assembly/disassembly much less of a hastle, as opposed to a non-qcs gearbox.

The Cylinder - is polished well, and the stock Piston provides a decent airseal, helping to provide that consistent 399-400FPS. Although, the stock Piston does not have full-metal teeth.

The Gears - didn't really come shimmed well but, this is an easy fix if, you put the time into it. I didn't have the stock Gears installed for very long, so I couldn't tell you if they were relible enough to take an 11.1v Lipo with the stock Spring for very long or not.

The Gearbox Shell - is a little cluttered with gear walls and such, but does have wire clearance for 16AWG wire, if you plan to rewire. It does not come radius'ed or anything. The polishing is OK, but it could be made much better, if you put the time, money, tools, and effort into it. The grease that was applied from the factory is pretty gross, but that's a typical thing to see. Cleaning the shell and regreasing with Silocone grease is a simple remedy.

The Motor - was lackluster, in my opinion. The magnets were not as strong as I would've liked, and it provided an OK stock rof out of the box. I'd say TPA in the 14-16 range, if I had to guess.

The Cylinder Head Nozzle - were well sealed. The Cylinder Head is polymer, with what looked like a 3/8in (maybe thinner) layer of ringed sorbo-pad, to reduce piston damage.
by Chase D. on 05/16/2017
"I love this gun! It's a great addition to any airsoft players arsenal. My only complaint is that the orange tip is off center and crooked. It doesn't effect the shooting it's just funny looking.
by Alex g. on 01/17/2017
"I have had tbjs gun for one month and it's been great. First few things I noticed is that the brown/ cooper colored switches in the picture are actually black which I prefer. And it came with a polymer magazine rather than a metal one which I was hoping. But it works fine and seems of good quality. There are some slight feeding issues where the gun won't feed with almost half the mag still with bbs in it. But that just means winding it up more often. And I'll be getting a new magazine. Some people say their battery is in the crane stock but mine came wired to he hand guard which can be a pain to get in. But just get a good quality battery that holds its charge or a smaller battery. The gun is full metal. The only polymer is the pistol grip and the stock which has a nice rubber butt on it. The gun is loud and sounds metallic and is very nice. There is some wobble in the stock which I don't mind. The gun is easy and simple to take apart and operate for beginners. The fuse did blow in it after a week but I replaced it no problem and have had no problem. Fuses are fairly cheap I suggest getting back ups. Overall I love this gun. You absolutely can not go wrong for the price. Most aegs of this quality are upwards of $200. And I got mine when it was on sale for $140.

Pros: full metal exterior and gearbox
Sturdy and accurate
Blowback feels nice
Gun is very adjustable and customizable for play style
Pretty much everything is amazing besides the few cons
Cons: fuse blew
Stock wobble
Magazine feeding issues

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