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King Arms CAA Licensed M4-S1 Airsoft AEG Rifle (Color: Black / Carbine)

ID: 41898 (CAD-AG-01-BK)
King Arms / Eagle Force859188418981ag-cad-10-BK(14.5)41898
4.4 stars, based on 32 reviews
King Arms CAA Licensed M4-S1 Airsoft AEG Rifle (Color: Black / Carbine)
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King Arms / Eagle ForceCommand Arms (CAA)

$249.00 $215.00

Canada Export CompliantCanadaExport Compliant
This gun has a muzzle velocity rating (FPS) between 366 and 500, and is compliant for export to Canada.
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Free shipping within lower 48 US states, no coupon code needed!


  • Full metal receiver and barrel assembly
  • High strength nylon fiber polymer RIS-compatible handguard, grip, and stock
  • Adjustable 6-position stock with rubber buttpad and adjustable cheek riser
  • Integrated CR123A Storage Compartment in Stock (Batteries not included)
  • Flip-up polymer rear sight
  • Railed flat top receiver great for optics
  • QD sling swivel points on stock and handguard (Sling swivel not included)
  • Fully licensed CAA trademarks
This is the official CAA Licensed M4 Carbine Airsoft Rifle. The receiver is made from high quality machined aluminum, each coming with an individualized serial number making this a legitimate collector's item as well as a formidable combat rifle. The polymer handguard features a triple rail setup with an interchangeable lower rail allowing the user to customize rail space to their preference.
All furniture is a high strength nylon fiber reinforced polymer. From the ergonomic pistol grip to the adjustable 6-position stock, this rifle combines the best in creature comfort and battle-ready utility. The stock also features an integrated CR123A battery compartment and QD Sling Swivel attachment points.
Internally the CAA M4 carbine uses a tried and true King Arms 7mm Bearing Ver 2 gearbox and a quality one-piece hopup. Hopup adjustment is also made easier with the integrated bolt catch function.

Manufacturer: King Arms / CAA Licensed

FPS Range: 370-400

Color: Black


Length: 805mm-890mm, Adjustable
Weight: 3120g
Inner Barrel: ~375mm
Magazine Capacity: 360rd Hi-Capacity CAA Mag. Works with Matrix, G&G, Tokyo Marui and other compatible M4 / M16 Series Airsoft AEG Magazines
Muzzle Velocity: 370~400 FPS (Measured with 0.20g BBs)
Thread Direction: 14mm Negative
Gearbox: Ver 2 Full Metal, Fully Upgradeable
Motor: Long Type
Fire Modes: Semi/Full-Auto, Safety
Package Includes: Gun, Magazine, Manual
Battery: 9.6v 2300mAh Small Type Nun-Chuck recommended (Battery not included)
Hopup: Yes, Adjustable

About King Arms / Eagle Force

King Arms was founded in 2004 with the mission to ensure optimum customer satisfaction by providing precision products and outstanding service. In 2015, we moved our headquarters from Hong Kong to Taiwan where we've continued to provide excellent products with the highest quality. While working with leading firearms manufactures, we provide to our customers a level of innovation and authenticity that can't be found anywhere else in the Airsoft industry. This goal is what continuously drives us to improve and gives us purpose.

About Command Arms (CAA)

Founded in 2004, CAA is a long-established designer, developer and world class producer of high quality weapons,weapon modernization accessories, optics, tools and upgrades servicing Armed Forces, Law Enforcement and gunenthusiasts across the world.

CAA is proud to have invented many weapon modernization accessories that have become the benchmark for our industry.

CAA outfits firearms for maximum performance in any environment. We improve your weapons accuracy, grip, and aimwith innovative add-ons to enhance balance and performance. Our upgrade kits assure the user with fluid and consistent operationwhen equipping with our range of tactical tools.

32 Customer Reviews

(Write a review)

by Sam N. on 11/04/2018
"Nice gun with light weight and licensed furniture from Command Arms. Good gearbox, I run it with a 11.1V lipo and it works well.
by John L. on 01/19/2018
"Great heavy duty robust rifle with most parts made out of metal where it should be.
Adjustable cheek pad and 6 position retractablek stock, good rate of fire and very accurate at 120 feet.

Working good flip-sight and works with all my other brand M4 mags.
by ian c. on 10/18/2017
"I bought this gun a couple of months ago and I don't know why everyone gripes about it. I think it's fantastic! First thing I did was buy an angel custom Hive suppressor and a mad bull 6.03 tight bore barrel with mad bull ultimate hop up unit and ran the barrel through the whole length. Suppressor included Performed great at gamepod. Then I bought a matrix 110 spring (so I'd chrono just below 400 for indoor play) a Lonex titan A-2 motor and a Guarder cylinder enhancement kit and dropped those in. To be honest. I bought the gun for how it looks, knowing that I could pretty much replace everything inside as needed. M-4s are pretty modular and standard. Buy it for looks and just make sure it's fully upgradable and drop a little more cash into her and she'll sing like a bird. Stock chrono 340 .25g bbs after all upgrades 395 fps with .25 bbs. I think when I go to an outdoor game I'll swap the spring out for a 120. I can't imagine what I'll chrono then. But for now and what I've been playing the 110 is more than enough. First thing I did was tighten the stick because I read that that had been a grievance of some. My front mounted sight was a little crooked so I popped out the pins and rotated the outer barrel a bit and replaced them. Really the only complaint I have is that when you take it apart the batter wire that runs to the front is extremely snug and if you're not careful you can strip the shrink wrap around your wire. I blasted it with a little more heat to shrink it a little more and this hasn't been a problem since. Overall I really love this gun. But they are m-4s so I might just buy a new upper and lower and everything and make it entirely different. The possibilities are endless. Who says you need to have more than 1 gun?

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