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Weapon Shield 90

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Airsoft Megastore is proud offer our customers the most comprehensive warranty options in the industry. Orders are processed within our standard 1-2 business days from the date of purchase and shipped out with your selected shipping method (chosen at checkout). All accessories and upgrade parts are shipped within their manufacturer's packaging, to best protect each part during shipping. Upon arrival, the player will need to easily attach their own parts. Please be careful not to void your warranty by opening your gearbox, or damaging any of the accessories, as they are not covered under any warranty.

We suggest that anyone investing in a gun from our custom proshop purchase a weapon shield protection plan. There's no sense in spending your hard earned cash on something this awesome and then be at the mercy of the manufacturer's limited parts warranty. Purchase a weapon shield plan, 90 or 135 day plans to protect your airsoft investment. Our 135 day plan includes an inhouse tech service that you have 135 days to use. Our techs will do a clean up that should keep your airsoft investment running like the day you got it. All Weapon shield customers are prioritized for order processing as well as other services. Join the our satisfied Weapon Shield customers today!

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CYMA CM521C AK74 CQB Beta Spetsnaz Airsoft AEG Rifle w/ Rail System

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  • Model: AK-74
  • Muzzle Velocity: 380 FPS
  • Build Material: Polymer Receiver, Rails
  • Weight: 4.8 lbs
  • Overall Length: 27" in. / 30" in.
  • Battery Type: 8.4V Stick
  • Gearbox: Version 3 (Metal)
  • Magazine Capacity: 200 rounds
  • Color: Black
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  3. 3. or, Any Order Over $150
Free ShippingThis item qualifies for Free Shipping

Must Haves

BB CombosBBsFace & Eye ProtectionGun BagPremium BatteriesSmart Charger for AEGsUniversal Tactical Sling

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Other AccessoriesTactical Foregrips
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Our take:  Agile and compact, the CM251 is CYMA’s official response to a hard-hitting AEG with lightweight external components.  A full metal Version 3 gearbox places this AEG on top of cheap alternatives that offer poor performance.  This AK-74 Beta Spetsnaz AEG, which shoots up to 380 FPS (w/ 0.20g BBs) and comes equipped with adjustable hop-up, lets you tag your targets with precision and accuracy in both outdoor skirmishes and close quarters combat.  But overall, CQB is this AEG’s strong suit.  A retractable stock improves shouldering.  Ambidextrous quick-detach (QD) rear sling mount lets you run 1-point slings.  And an integrated RIS handguard lets you mount your favorite accessories equipped with a Weaver or Picatinny rail mount.  On top of it all, this AEG is extremely lightweight.  Weighing less than five pounds with the magazine attached, this AK-74U airsoft rifle is perfect for pushing fast toward the opposition, giving you the upper hand.  If you’re looking for an extremely affordable AEG that comes with everything you need to put it to the test (magazine, rechargeable battery and standard wall charger), the CYMA CM251C is an absolute must-have!


- Full metal Version 3 gearbox
- Extremely lightweight polymer build
- Integrated handguard rail system
- Ambidextrous QD sling mount
- Fixed front and rear sights
- Retractable LE stock
- Short high capacity magazine
- Shoots up to 380 FPS (w/ 0.20g BBs)

Operation:  Electric Automatic
Build:  Polymer Receiver, Receiver Cover, Rail System, Buffer Tube, Stock, Grip, Charging Handle, Sights / Metal Gearbox
Firing Modes:  Semi-automatic, Full-automatic, w/ Functional Safety
Muzzle Velocity:  370 – 380 FPS (w/ 0.20g BBs)
Gearbox:  Version 3 (Metal)
Magazine:  200rd High Capacity (gear wind-up)
Battery:  8.4V Stick
Hop-Up:  Adjustable
Weight:  4.8 pounds
Overall Length:  27" in. / 30" in. (Retracted / Extended)

Ammo type:  Seamless 0.20g or heavier (0.23g, 0.25g, 0.26g, 0.28g, etc) BBs.  For maximum performance and accuracy, Airsoft Megastore recommends GoldenBall ProSlick BBs which carry perfect spherical consistency and density, available at Airsoft Megastore for the lowest price on the market, guaranteed.

Package includes:
  Airsoft rifle, hicap magazine, rechargeable 8.4V stick battery, standard wall charger, tactical rifle sling, cleaning rod

Color:  BLACK

Battery Charger Recommendation:  Airsoft Megastore recommends the use of a smart charger to avoid overcharging the battery (overcharged batteries may cause decreased airsoft gun performance and may shorten battery life significantly). Smart chargers not only shorten charge time significantly (up to 800% faster charging) but also automatically shut off once the battery is fully charged to avoid overcharged batteries. 

CYMA CM521C AK74 CQB Beta Spetsnaz Airsoft AEG Rifle w/ Rail System Categories:

GUN FORGE - Custom Built by AMS Customers

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Product Reviews

5 CYMA CM521C AK74 CQB Beta Spetsnaz Airsoft AEG Rifle w/ Rail System *****

"This gun is very sturdy and sounds nice when you shoot it although it was hard to put the battery in and the Fps is AMAZING overall very good gun"

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4 CYMA CM521C AK74 CQB Beta Spetsnaz Airsoft AEG Rifle w/ Rail System *****
Fantastic Weapon! Short Top Rail

"I've been playing airsoft with my friends, running around the backyard with spring action pistols for as long as I can remember. However, recently I wanted to "up" my game and go to real courses. I bought this gun, and had my hands on it in exactly one week later. After a solid 5 hour charge, I took it out to shoot. This gun has an AMAZING fire rate, and does pack a good punch. I've only shot .2 gram BBs so far, but with out doubt this gun would shoot .25 and .28 BBs like a boss (which I will most likely end up shooting). Currently I am running a foregrip with a retractable bipod (for outdoor play), and a tactical light just for looks. The adjustable stock is very comfortable, and I could very easily see my self running this gun outdoors and definitely indoors. THE ONLY PROBLEM I have with this gun, is that my red dot sight doesn't fit the short rail length on the top of the weapon. Before you buy this gun, make sure your red dot is "short" enough to clamp on to the top rail. Also, buy an extra mag or two with the gun. The mags are fairly small (220 BBs) and definitely need some more. I really do recommend this gun to beginners and intermediate players!"

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I ordered a gun sling a couple weeks ago. Unfortunately, one of the clips broke. After a few email correspondings with a customer service representative named Jun (my emails did not show a last name), AMS sent me a replacement sling for free. I did not even have to send my clip back. AMS is a terrific store and I plan on doing more business with them. They were polite, efficient, and just a pleasure to work with. I would recommend Airsoft Megastore to anyone. mskanwischer, USA
Airsoft Megastore is The Best Airsoft Website Out There (I Think) and i Will Always Be Loyal to AMS and Order Almost All of my Gear From Them. The Customer Service is Also Amazing, Jun my Customer Service Representative Has Helped Me With Anything i Needed Help With, Especially My Order Problem (Had 2 Magazines Missing from Order) and Jun Helped Me With The Problem, and Now The Mags Have Been Shipped To Me. Thank You So Much AMS and Jun. Ethan1214, Saskatchewan, Canada
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