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What's Included?

COMPLETE STARTER KIT - Everything you need to play at an airsoft field

BASIC STARTER KIT - Everything you need to use your airsoft gun

What you need to play:

  • Nothing!  That's the beauty of a Fox Airsoft Starter Kit!


  • Flip Up Sights - Back up if your primary optic goes down
  • Rail System - Use to mount flashlights, red dot sights, or lasers
  • Rotary Hop Up Chamber
  • Polymer receiver reinforced with nylon fiber
  • Reinforced gearbox
  • ESA System Inside (Quick Change Spring)
  • 6.03mm inner barrel
  • Individual Serial Number
  • SMAG Hi Cap Magazine

Technical Specifications:

  • Model Number: SA-F03
  • Muzzle Velocity: 375 FPS (High Spring Installed) or 300 FPS (Low Spring Installed) with .20 gram BB's
  • Colors: Black and Tan
  • Battery Type: 9.6v Nunchuck Battery
  • Battery Connector: Mini Tamiya
  • Magazine: 300 Rd High Capacity Magazine
  • Gearbox: Version 2
  • Motor: Long Type
  • Barrel Diameter: 6.03mm
  • Barrel Length: 275mm
  • Barrel Thread: 14mm negative
  • Gun Length: 25.5 - 29 inches
  • Weight: 4.7 lbs

Get everything you need to start playing!

Get started in airsoft the right way. Our starter kits set you up with all the equipment you will need to use your airsoft gun. Whether it is just to shoot in the backyard or to go compete at your local airsoft field, we’ve got you covered. The basic kit takes the fuss out of looking around for every individual piece of equipment required to operate an airsoft gun by getting you a package that includes the correct, high quality BB’s, a high quality battery, and smart charger. The complete kit adds high quality ANSI-rated goggles for eye protection, a hybrid steel and nylon mesh mask for lower face protection, and a discrete nylon padded gun case to responsibly transport your airsoft gun. If you are brand new and starting out or are buying this as a gift, all these items are essential to not only operating the airsoft gun but also to use it safely.


Q: What kind of battery do I need?

A: With the kit, we will preselect the appropriate battery that fits your gun. Airsoft guns come in all shapes and sizes and so do the batteries, making it a little bit tougher to figure out which battery you need. We’ll take care of that for you in both the Basic and Complete Kits. You will start out with a NiMh style battery which is the safest and easiest to use for beginners.

Q: What kind of BB’s should I get?

A: In our kit you will be supplied with 2500 rounds of high quality precision airsoft BBs. Using only high quality BBs ensures that your gun does not jam and break. We will select the best of what we have available for you to use. Please use high quality ammo that you can only get from a dedicated airsoft store.

Q: How long do I charge the battery?

A: With the provided smart charger, it is normally going to take about 2-3 hours to fully charge. Plug in your battery and wait for a green light and you are all set. Do not ever leave your charger and battery plugged in and unattended. Typically some low quality chargers will do the job in about 5-6 hours but require you to time it yourself and unplug when you think your battery is done. We highly discourage using cheap chargers out of the box for beginners.

Q: What type of warranty is offered on this airsoft gun?

A: Fox Airsoft offers our 30/30 warranty and the manufacturer may offer their own separate warranty as well. The Fox Airsoft 30/30 warranty covers manufacturer defects and performance issues out of the box. Airsoft gear is personal equipment so once you start using the rifle it becomes your own equipment and it cannot be exchanged or returned. The warranty is void if the product has been modified, abused, or the orange tip has been removed. If you should encounter an issue with your airsoft gun out of the box, please reach out to us so that we may help and resist the urge to take apart the gun. If you decide that you want to return the gun for a full credit or refund, the gun must be brand new, unfired, unused, unopened, unmodified, with the orange tip intact for us to accept it back. If any of these conditions are not met we reserve the right to refuse returns or may issue a restocking fee.

Q: What components are included in the Complete Starter Kit of the Specna Arms SA-F03 Flex from Fox Airsoft?

A: The Complete Starter Kit of the Specna Arms SA-F03 Flex includes the Specna Arms F03 FLEX Carbine, a magazine, an additional M90 main spring, user’s manual, QC certificate, a 9.6 Volt Enhanced Airsoft battery, 2500-count high-quality BB’s, Auto-Stop Smart Charger, Hybrid Steel Mesh Mask, Full-Seal ANSI rated goggles, and a padded nylon gun case.

Q: How does the Basic Starter Kit differ from the Complete Starter Kit?

A: The Basic Starter Kit for the Specna Arms F03 FLEX Carbine includes the airsoft gun, magazine, additional M90 main spring, user’s manual, QC certificate, 9.6 Volt Enhanced Airsoft battery, 2500-count high-quality BB’s, and the Auto-Stop Smart Charger. It does not include the mask, goggles, or gun case that the Complete Starter Kit offers.

Q: What are the technical specifications of the Specna Arms SA-F03 gun?

A:The Specna Arms SA-F03 has a muzzle velocity of 375 FPS with the high spring installed or 300 FPS with the low spring installed using .20 gram BB's. The gun comes in black and tan colors, uses a 9.6v Nunchuck battery with a Mini Tamiya connector, and features a 300 Rd High Capacity Magazine. It has a Version 2 gearbox and a long-type motor. The barrel diameter is 6.03mm, with a length of 275mm and a thread of 14mm negative. The gun's total length ranges between 25.5 to 29 inches, and it weighs 4.7 lbs.

Q: What additional features make the Specna Arms SA-F03 standout?

A: The Specna Arms SA-F03 comes with flip-up sights as a backup for primary optics, a rail system suitable for mounting accessories like flashlights, red dot sights, or lasers, a rotary hop-up chamber, and a polymer receiver reinforced with nylon fiber. It also boasts a reinforced gearbox, an ESA System for quick spring changes, a 6.03mm inner barrel, individual serial numbers, and a SMAG Hi-Cap Magazine.


About the Specna Arms F03 FLEX Carbine

Introducing Specna Arms' latest offering, the FLEX™ line of replicas. This collection stands out with its unbeatable combination of affordability, an innovative quick spring change system, exceptional out-of-the-box performance, and top-notch components, making it the ultimate choice for airsoft players of all levels.

Stepping onto the airsoft field with the Specna Arms SA-F03 Flex feels like entering battle with an edge. The gun, with its sleek design available in both black and tan, not only appears professional but functions with a level of precision that enhances the overall airsoft experience. Its polymer receiver, reinforced with nylon fiber, gives the weapon a robust and durable feel without adding unnecessary weight. Weighing in at 4.7 lbs, it strikes a fine balance between heft and manageability, making it a perfect fit for both beginners and seasoned players.

Crafted with precision and durability in mind, the receiver, stock tube featuring an enlarged SF type stock for battery housing, the front in M-LOK standard, and the pistol grip are all expertly constructed from polymer plastic reinforced with nylon fiber. As for the other crucial components like the barrel, flash hider, and enlarged reloading handle, they are expertly crafted from durable metal. Additionally, all screws, pins, the case ejector flap, and dummy bolt are forged from strong steel, ensuring a reliable and robust build. The receiver proudly showcases unique markings and a serial number, adding to its authenticity.

Using the SA-F03 Flex is a treat, especially with its myriad of technical features that cater to a player's needs. The flip-up sights, for instance, serve as an excellent backup, ensuring that players are never left at a disadvantage if their primary optic goes awry. The rail system is a fantastic addition for those who love customization, allowing attachments like flashlights, red dot sights, or lasers to be added with ease. Furthermore, the rotary hop-up chamber ensures consistent shot trajectory, and with the ability to quickly switch between the high spring (375 FPS) and low spring (300 FPS), players can adapt to various gameplay scenarios on the fly.

Perhaps one of the standout features of the SA-F03 Flex is its ESA System, which allows for quick spring changes. This means that adapting the gun to different field regulations or gameplay styles can be done in mere moments, offering a level of flexibility that many airsoft guns don’t provide. The gun's 6.03mm inner barrel ensures accuracy, and the SMAG Hi-Cap Magazine means reloading is infrequent, allowing players to stay in the action for longer periods. In essence, using the Specna Arms SA-F03 Flex feels like wielding a tool expertly designed for the sport, where every feature has been thoughtfully added to elevate the player's experience.

With Specna Arms' FLEX™ line of replicas, you can experience unparalleled performance and versatility, all at a budget-friendly price. Whether you're a novice or a seasoned player, this series caters to all airsoft enthusiasts, delivering a thrilling and immersive experience on the battlefield.







Product Manual

— Customers Testimonial —

Honestly, this is the only airsoft shop I will ever buy from. Their guns are always quality. Their custom work is mind blowing. Their staff is not only helpful, but always happy to help. If you are just starting out or have been playing for years, these guys have guns, gear, and good advice for every situation.
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— John
Great people great place I've ordered a few small things. Delivery was on time both times great items. Yesterday I checked my mail they sent me a fox airsoft patch just to say thanks and to me that's a way to do bussiness. Fox y'all have got business keep up the good work.
— Matt
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