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EMG x Knight's Armament Company KS-1 Airsoft AEG Rifle w/ Battery & Charger
(Color: Tan)

ID: 122394 (AEG-EMG-WE13-3DP-Tan)

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All guns will ship with a federally mandated orange tip. Optic, mock suppressor and other accessories not included

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Knight's Armament

5 Customer Reviews (Write a review)

$229.99

Airsoft Authority Since 2001
Serving enthusiasts for over 25 years

Industry-Leading Warranty
Buy with confidence - 90 day warranty

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Free shipping over $149 in lower 48 states

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The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.

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This is an express-restricted item and can only be shipped via ground shipping methods.

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Free shipping within lower 48 US states, no coupon code needed!

Order Today Receive as soon as Sat Aug. 15 with Free Shipping

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Features

Fully Licensed KAC KS-1 nylon-reinforced polymer receiver with authentic roll marks and detailed accuracy
Ambidextrous bolt release, selector switch, and magazine release
EMG "SIGMA" Stock included for easy battery access
eHUB compatible flash hider designed for use with EMG KAC accessories
330mm brass 6.03mm inner barrel w/ rotary hop-up system
12.75" URX6 nylon-reinforced polymer M-LOK handguard with M-LOK slots on the 3, 6, and 9 o'clock positions to mount your light, laser and other accessories
True quick change spring system for quick FPS changes
High speed gearbox powered by WELLPRO capable of 30 rounds per second with 11.1V Li-Ion
Integrated electronic trigger unit for lightning quick trigger response
7.4v Li-Ion battery w/ T-Plug connector. USB charger included
140rd mid-cap magazine w/ speedloader included

The SR-16 line of 5.56mm NATO rifles have an established lineage of superior performance. The KS-series of carbines is the next step in Knight's continued refinement of the AR-15 platform, with improvements to ergonomics, maintenance procedures, and function. The KS-Series of carbines are available in multiple barrel length configurations, each optimized to meet various needs and requirements. Each configuration has been built to exceed stated requirements, suppressed and unsuppressed, across environmental and performance spectrums. The URX6 handguard system offers not only ample M-LOK negative-space mounting provisions and a comfortable grip profile, it is also notably resistant to shift from impact, while also easily replaceable. The KAC E3.2 bolt improves upon the durability and functionality of our renowned E3 bolt design, directly addressing ejection performance, specifically when using a suppressor with a short-barreled carbine. The lower receiver has been updated with a functionally mirrored bolt catch and release on both sides of the receiver. Each SR-16 model was born from professional-user programs, resulting in purpose-built solutions to specific 5.56mm carbine requirements, as well as single solutions to cover multiple applications.

Manufacturer: EMG x Knight's Armament - WELLPRO

FPS Range: 300-350

Disclaimer: Safety shooting glasses included, NOT intended for game use

Length: 735mm - 820mm Adjustable
Weight: 2200g
Inner Barrel: 330mm
Magazine Capacity: 140 Round mid-cap magazine. Compatible with Matrix, G&P, Tokyo Marui and other compatible M4 / M16 Series Airsoft AEG Magazines
Thread Direction: 14mm Negative
Gearbox: Ver 2 Full Metal, Fully Upgradeable w/ Quick Change Spring
Motor: Long Type
Fire Modes: Semi/Full-Auto, Safety
Battery: 7.4v 1000mAh stick type LiPo recommended, 11.1V Li-Ion / Li-Po stick type compatible (Wired to the rear with a T-Plug / Deans connector)
Hopup: Yes, Adjustable
Caution: Do not use with a drained battery and do not leave the battery plugged in when idle. Ensure the magazine is removed from the gun and no bbs in the barrel during MOSFET programming
Package Includes: Gun, Magazine, 7.4v T-Plug Li-ion Battery, USB Charger, Manual, Safety Glasses

by David Y. on 05/05/2026

"This is the best m4 ever I love it!!

by Printis T. on 04/23/2026

"This is the best AEG I’ve ever bought. I want more.

by Chrisitan D. on 03/31/2026

"5 STARS!!!

I'm not easily impressed, but this AirsoftGun is what I've been asking for!! Play at Pro Level at the best possible price!

I've been saying that Polymer AirsoftGuns are the way to go! It's super lightweight, which lets you Aim Faster, Move Faster, and Carry ALL Day! The Polymer is a high-strength polymer, durable for rough handling and can take drops thanks to being more flexible than metal.

As for Performance, this AirsoftGun has the upgrades coming out of the wazoo! Programmable right out of the box with its new Thermal ETU; program binary mode, burst mode, and enable pre-cock. Programming is so fast and easy that you can even program it while on the field! It even comes with a 7.4v Lipo and charger, but why stop there? Crank it up with an 11.1v Lipo and reach 30 RPS. The accuracy and range will surprise you! You can really touch people with .32g bb's outdoors, or get one-shot snipes indoors thanks to this AirsoftGun's length.

You can easily switch out springs, similar to E&C's unscrew buffer system. Although, it's still not faster or easier than CYMA's QBS. In this case, with this AIrsoftGun all you have to do to change out the spring is to unscrew the castle nut and buffer tube, and then you push and twist off the spring guide and the spring pops out!

There's honestly a lot of other things I also like about this AirsoftGun. I love how snappy and satisfying the charging handle, bolt, and bolt release all feels and sounds. Everything is ambi: mag release, bolt catch button, selector switch, charging handle, and QD points. Pre-cock makes firing the AirsoftGun sound so good, and the orange tip is CGS suppressor compatible.

If I'm really being honest, there are a few things that I don't like about this AirsoftGun, but they are just minor. The Orange Tip is hiding a hidden hex screw; REMOVE the hex screw BEFORE unscrewing the -14mm orange tip. Don't find out the hard way! The length is pretty long, so if you're playing indoors ... you will find some tight places pretty difficult to aim. Also, the one I got was shooting at 315 FPS out of the box, and maybe it's because the inner barrel did not fully extend to the tip of the outer barrel. But again minor gripes.

Overall, this AirsoftGun is really super worth it affordable! Get the Length of a full-sized rifle at the weight of a pistol. It's chalk full of features and functions that make this AirsoftGun a top competitor in any game, milsim and speedsoft, indoor and outdoor. The real question is ... when will they make a short version?

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Knight's Armament

About EMG

The EMG vision is to manufacture products the world has never seen before; products we would put our name on, and products that hit the spot! "EMG" (Evike Manufacturing Group) was spawned from the realization that if you want something done exactly the way you want it, you need to do it yourself, and we did just that.
We took our 16 years of knowledge as the market's lead retailer, our network of 300+ superior manufacturers, to work with inspiring top innovators in the firearms industry. That combined with the vision to invest into the Airsoft industry, an industry we believe in, EMG was born.

About Knight's Armament

Knight's Armament Company (KAC) is a premier American defense contractor and firearms manufacturer headquartered in Titusville, Florida. Founded in 1982 by C. Reed Knight Jr., the company began as a research and development firm dedicated to creating specialized equipment for U.S. Special Operations Forces. KAC is most famously known for its collaboration with legendary firearms designer Eugene Stoner, which led to the development of the SR-25 sniper rifle and the revolutionary Rail Interface System (RIS), a modular handguard that transformed how modern combat rifles are accessorized. Today, Knight™s Armament remains a leader in small arms innovation, producing world-class rifles like the SR-15 and SR-16, advanced suppressors, and "Knight Vision" electro-optics for military, law enforcement, and civilian markets.