Pre-Order ETA August 2015 KWA Full Metal KM4 SR10 Airsoft AEG (Newest 2GX 9mm Gearbox Version)

4.7 stars, based on 61 reviews


Model: AEG-KWA-SR10
This item is MAP controlled
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. Click here for details.

61 Customer Reviews

by matthew h. on 07/07/2015
In my time playing Airsoft I have had many guns. But this is by far the greatest gun i have owned. The range and accuracy are superb along with the rate of fire. The ONLY con is the rail it can get a bit front heavy
5/5 should buy
by Kalen S. on 06/10/2015
"Bought this airsoft gun back in 2012, and unfortunately i was generally disappointed in the performance of this weapon.
It worked for 1 week, then started jamming every single round, found out the rubber was already worn out, so i changed it, here i noticed KWA's 2 part hopup chamber, and this is where the bad things start happening.
I changed most internals of my weapon, as i do in all my weapons, and the gearbox did a steady 420 fps after my modificatins, this is in another gun, reinstalling it in the KWA, it dropped to an astounding 150 fps, suprised i was, and fixed every single leak i could find, but with no results. Turns out the two part hopup CANNOT hold its seal, i bought another from the KWA store, and no change, the hopup simply does not keep the air in, as it can easily escape between the two pieces of plastic.
Therefore i must give this a bad review, as you are not able to ever use a 1 piece hopup, don't buy this gun, in the long run it will loose it's seal.
by ben m. on 06/09/2015
"If you are considering buying this gun, I highly recommend you go for it! this gun is by far the best rifle I have ever owned. I have had it for well over 2 years and still no problems with it. Also, if you are looking for a realistic weapon, again this is it. the weight and feel just fits that realistic category. the only thing I wish that KWA would add to it is a bolt catch. love KWA. Has always been my favorite brand.


heavy (could also be a con)
capable of running LiPo
solid construction (metal)
a lot of room for attachments
Looks awesome


KWA Full Metal KM4 SR10 Airsoft AEG (Newest 2GX 9mm Gearbox Version)

The second-generation KWA airsoft rifles feature over 30 structural improvements and performance upgrades, making them the top choice for professionals and serious enthusiasts.

The SR10 is a versatile weapon, easy to maneuver and potent enough to reach your targets from a safe distance. The SR10 features a 425mm inner barrel, 10" free floating rail adapter system, 2GX Gearbox, 2G High Performance Bucking, Quick Detach front and rear sights, flat top receiver, matte finish with individualized serial numbers, 6 position collapsible crane stock with two integrated battery compartments for nun-chuck style 11.1v Li-Mn batteries or 11.1v Li-Poly cell packs.

At the heart of every new KM4/16 series rifle is KWA's Second Generation Extreme (2GX) gearbox, designed to resist cold temperature failures. Structural reinforcement has been engineered into the shell strengthening the overall integrity of the gearbox especially in areas prone to failure. The new 2GX comes standard with six 9mm Spherical Bearings and Heat-Treated Precision Gear Sets offering flawless performance in all conditions.

Accuracy of the new rifles has been greatly enhanced with the introduction of the 2G High Performance Bucking. The new bucking utilizes a set of uniquely designed "Fins" that produce remarkable consistent performance shot after shot. All KWA inner barrels are now manufactured in Japan using the latest machining technology resulting in exceptional quality and increased performance.

Special Features:
  • Adjustable Hop-Up
  • 45 Days Product Warranty [US only]
  • Lifetime Tech Support

* Individual test results may vary depending on brand of bbs, and chronograph used.
** Results are based on tests conducted with 11.1v 1500mAh 15A LiPo batteries.
*** Orange tip flash hiders are required for all US sales or where applicable by law.

Disclaimer: Maximum recommended battery by KWA is 11.1V 15C 1600mah, to be under KWA warranty. Stronger batteries can be used, and will result higher performance and wear and tear, but is recommended for experienced players only. is not responsible for higher performance and higher wear and tear. We do offer all spare and CNC replacement parts for reinforcement, replacement and repair.

This is a pre-order item.

Pre-order estimated arrival: August 2015

By adding a pre-order item to your shopping cart, you will guarantee yourself to have the item reserved before they are offered as an in-stock item. Often, you will also save on shipping while not risking a rate item being sold out before you have a chance to buy it. Being the largest Airsoft distributor in the America continent, is the gateway for many exciting items entering the Airsoft world. All pre-order items are tagged with our best estimate on arrival times factoring in manufacture delay, us custom examinations and other factorys to the best of our ability. The goods on pre-order generally arrive before they are past due or on-time 99% of the time. All pre-order items are processed subject to item availability on a first-come, first serve basis. All orders and payments are processed at the time of payment. Buyer reserve the rights to a full refund on any pending pre-order items at any time.

This item is currently Out of Stock. Most out of stock items are restocked within 1-3 weeks. Some items may take longer. Please add this item to your wishlist to keep posted on its availability.

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