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Knights Armament Airsoft SR-16E3 CQB Mod2 Airsoft AEG Rifle with Polymer Receiver by Echo1 (Color: Black)

ID: 56847 (AEG-E1-SR16-CQB-BK)
ECHO1 / JAG56847
3.8 stars, based on 4 reviews
Knights Armament Airsoft SR-16E3 CQB Mod2 Airsoft AEG Rifle with Polymer Receiver by Echo1 (Color: Black)
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Optic not included


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*Optic not includedLong known as the provider of high quality and specialized firearms for some of the most elite military and law enforcement agencies in the world, Knights Armament, of Vero Beach Florida is making their entry into the world of Airsoft. Partnering with Echo1 and Zshot, Knights Armament Airsoft provides the airsoft community with authentic, accurate and fully licensed replicas of some of their best known weapons. By working directly with the designers at Knights, KAA has been able to pass on some of the most authentic replicas of Knights products on the market including updated Knights back-up sights, rails and receivers. By choosing Knights Armament Airsoft, you know you will be getting a product designed by one of the most respected names in the firearms industry and provided by one of the most well known names in airsoft, Echo1.


  • Durable injection molded polymer receiver with mock ambidextrous controls
  • Fully licensed by Knights Armament Corp.
  • Fully licensed full metal 10" URX 4 Keymod handguard
  • Front and rear KAC micro flip up sights
  • Bottom 9 slot keymod rail segment
  • 2x 5 slot side mounted keymod rail segments
  • Continuous top rail allows for mounting of optics, lights and other accessories
  • Stamped Knights Armament trademarks
  • Mock ambidextrous mag catch and ambidextrous selector switch
Length: 740mm - 820mm (29"- 32"), Adjustable
Weight: 1868g (4.12lbs)
Inner Barrel: 300mm
Magazine Capacity: 350rd Hi-Capacity. Works with Echo1, Matrix, G&G, Tokyo Marui and other compatible M4 / M16 Series Airsoft AEG Magazines
Muzzle Velocity: 350~370 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
Battery: 9.6v Small Butterfly Type recommended (Battery not included. Wired to stock with Small Tamiya connector)
Hopup: Yes, Adjustable
Package Includes: Gun, Magazine, Manual, Flip-up sights

Manufacturer: Echo1

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: 350-370

California residents click here for Proposition 65 warning

About ECHO1 / JAG

Since its inception the Echo1USA brand has strived to provide our clients with uncompromising quality of products and customer service. As avid Airsoft players ourselves, we are able to understand the needs of the sport and the frustration with inferior products. Our commitment to yielding the finest most affordable Airsoft Guns and Accessories on the market today is steadfast, and remains the foundation of our continued success.

4 Customer Reviews

(Write a review)

by John S. on 04/06/2017
"Great gun highly recommended but magazine tends to fall out
by alex r. on 11/19/2015
"Got the gun and I have to say the battery it comes with slows the gun down but I went ahead and got it wired to deans and am currently running an 11.1 lipo in it and it is hitting around 20 rps with a beautiful trigger response I am even considering a new motor to bump up performance. Very pleased. Also I don't understand why this gun gets such a bad rap I mean the ambi really isn't a problem for me I think it looks better than a standard m4 anyway
by Hunter S. on 09/20/2015
"I have had the fun for about two weeks now and used it once in a small game i had test fired it before. While test firing the piston shattered and had to take everything apart. I had received a replace piston for it and so i though my problems were fixed but it just went down hill from their their. 3 hours of trying to fix it we just had lost parts and broken peaces from trying to just put it back together. I highly recommend getting another or upgrading a gear box the gun felt very nice and had a good weight to it i just wish i was able to shoot it more. Now i have to spend another 70 dollars for a decent gearbox.

pros-feals good not to heavy shoots nice

cons- gearbox is very cheap

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