King Arms Colt M4A1 Metal AEG Airsoft Rifle Table Top Review


Type: Airsoft.

Manufacturer:King Arms.

Model: Colt M4A1 Metal AEG.

Materials: Metal & Nylon.

Weight: 6 pounds.

Barrel: 15 inches, metal.

Propulsion: AEG

Action: Semi/full auto, single action.

Ammunition Type: 6mm Plastic BB (recommended .20 gram plus).

Ammunition Capacity: 300+ round magazine.

FPS: 450.

Trigger Pull: The trigger pull on the King Arms Colt M4A1 is fairly short and light as it is essentially just an on off switch for the internal electronic components. You can shoot this gun very quickly in semi auto mode, and of course even quicker when full auto is selected.

Accuracy: Again, I tested this Airsoft rifle just like I do my other BB rifles and put 10 rounds into a target from 30 feet out using a semi rested position (sand bag in the front - standing in the rear). I used a non-magnified red dot scope for this test rather than using the built in iron sights. Like my initial WE SCAR test, when I walked up to the paper I was shocked at this Airsoft rifle shooting .20 gram plastic BB's. I again got a 2 inch 10 round grouping! I am beginning to think that a well tuned Airsoft gun can make for a pretty good target plinker!

Build Quality: The King Arms Colt M4A1 Metal AEG Carbine is very well made with a full Metal upper and lower receiver, along with metal parts exactly where they would be on the real steel version of the Colt M4. The only plastic or nylon components are the stocks and the grips and perhaps some internal parts. There is a bit of wiggle in the rear stock and metal magazine but this may be a Colt M4 attribute, for the most part the fit and finish was excellent!

Realism: As with many Airsoft guns, there is great attention to realism and the King Arms Colt M4A1 is no exception. It is an AEG and not a gas blowback Airsoft gun so it does lack some realism in terms of the hard hitting bolt action but on the other hand you can fire what seems like an endless stream of BB's in full auto with this AEG Colt M4A1 Replica. I do like the fact that the charging handle and forward assist works similarly to a real M4 and also the Dust cover cleverly exposes the internal hop-up for easy adjustment. The Colt licensing and branding throughout this M4A1 look-a-like help to really make this Airsoft rifle look believably like a real Colt M4 carbine. 

Purchased From: The Replica Airguns Store.


  • Amazing attention to detail with lots of working parts.
  • Full colt licensing and markings.
  • All Metal upper and lower receiver, lots of metal parts throughout.
  • Semi auto & full auto selectable.
  • High capacity 300+ round magazine.
  • Removable carry handle with Weaver/Picatinny rail underneath.
  • Nice high 400+ FPS.
  • Extremely accurate for plastic BB's.
  • Fully adjustable sights with two position Peep sights.
  • 6 position adjustable stock.
  • Easy access to internal hop-up system.


  • Magazine and stock seems bit lose.
  • Canada version does not come with battery or charger.
  • Came with the orange flash hider, you may want to replace or paint it if legal in your area?
  • May be too powerful for inside skirmishes without some detuning.


I was not fully sure if I would warm up to an AEG style of Airsoft rifle as I really enjoy the realism of a gas blowback type of replica gun. But the overall realism of the King Arms Colt M4A1 metal AEG really won me over and the added working components like the charging handle and forward assist along with the fully adjustable sights and 6 position stock just made it for me with this Airsoft Carbine. There is something to be said about an AR15 styled gun, they just look the part and this very realistic and usable M4 Airsoft replica is not just great to hold and look at but also performs very well which would make it deadly on the field! Now if only I could find some time to use it on the field ;)

6mm, AEG, Airsoft, Full Auto, Review, Rifle, Semi Auto, YouTube Video Colt M4A1, King Arms