SRC SR4 ST Falcon-W AR-9 AEG

SRC
Code: GE-8M2009
£259.99
  • 6.05mm Tightbore inner barrel
  • Quick change spring
  • AR9 and STANAG compatible

Offering you the best of both worlds, the SR4 ST Falcon-W AR-9 AEG lets you choose between using AR9 and STANAG magazines by using the handy included receiver adaptor. It's lightweight and compact design make the Falcon perfect for run and gun CQB playstyles.

With a shortened handguard for increased mobility and a sound amplifying muzzle device to really make your presence heard, the Falcon boasts a wealth of other features such as MLOK front handguard, 20mm top rail and light enhancing flip up ironsights in addition to a 300 round 9mm magazine as well as a removable magwell grip the Flacon has a lot to love in a compact package.

Full description

Description

This style of rifle is quickly becoming an absolute mainstay, but what the SR4 ST Falcon-W AR-9 AEG has over most other offerings is the ability to switch between using 9mm and STANAG magazines depending on your mood or playstyle using a simple adaptor. Built for intense and fast-paced CQB skirmishes, the Falcon is as light as a feather thanks to its full polymer construction, keeping you light on your feet, bombastic, thanks to the load muzzle device with plenty of room for customisation, thanks to its M-LOK rails system and included 20mm RIS rail attachments.

Beginning with the front of the rifle, surrounding the 8-inch inner barrel, we have the sound-enhancing muzzle device. This is for those of you that like to scare the living daylights out of your opponents when you flank them with a hefty 'crack' from each and every shot! Below the handguard, the Falcon features a QD sling point, to which you can attach a sling of your choosing and even use it in tandem with one of the two rear QD sling points if you prefer using a two-point sling.

Above the handguard is a 20mm RIS rail that runs along the extent of the handguard and upper receiver in a monolithic style, to which are attached the included flip-up and light-enhancing aperture sights for superior vision when aiming. The rear sight boasts a rotary drum adjustment to allow you to adjust on the fly and always hit your mark. These sights can always be removed at your choosing if you want to opt for alternate sights or tactical attachments.

Moving on to the receiver the first thing we can see is the stylish SRC branded logo in keeping with the sleek, modern look. Of course one of the main draws to this rifle is the STANAG to 9mm magwell converter. This attachment allows you to use compatible 9mm SMG-style magazines which is a hugely popular configuration right now, in part due to giving you the extra option of easily using your mag as a foregrip. The converter has a STANAG head which clips into the magwell and is removed much like an M4 Mag - by pushing the mag release button. This means that if your 9mm magazines are empty you can immediately decouple the adaptor and switch to your STANAG magazines keeping you in the fight longer. It may even throw off your opponents if they think you've run out of ammo when your 9mm mags run dry when you know this is not the case!

Above the magwell is the mock bolt release and while it does not serve any function in this Airsoft replica, it completes the look of the Falcon. The pistol grip is an improvement over the average rifle and SMG grips in that it has a textured, finger-ridged design, giving you comfort and control that will never leave your hands in the heat of battle and is useable with or without gloves. Noticeably the grip also sports a thumb indentation, letting your thumb sit more comfortably against the grip when held.

The Falcon features an ambidextrous charging handle, which is fully functional for that satisfying snap when pulled during gameplay and also reveals the HOP adjuster. To access the rotary HOP-up adjuster of the Falcon you will need to pull the charging handle to the rear which will open the dust cover and retract the mock bolt, presenting the HOP-up adjuster on the right side. The charging handle is located at the top rear of the receiver, and is an ambidextrous design, allowing left or right-handed users to access the HOP-up instinctively, with no funny body mechanics involved. The rotary HOP-up unit is the current best design out there for the M4 platform, and is a worthy include in the Falcon.

At the very rear of the rifle is the A frame stock, which is a familiar but redesigned departure of the classic M4 stock. The A frame open design of the stock ensures you are less likely to snag when manoeuvring through those tight CQB environments.

The stock is easily adjusted with a push of the underside button. Extending the stock reveals the battery compartment, accessed by squeezing the two points either side and removing the cover. Because this rifle has been designed to be as economic with space as possible for tight situations the compartment is as small as can be. As such we would recommend a LiPo crane stock battery with a Mini-Tamiya connector such as the VP Racing 7.4v 2000mAh Crane Stock Battery.

Internally the Falcon contains a wealth of modern Airsoft components to keep up with today's increasingly intense competition. It features a 6.05mm tightbore barrel and reinforced gearbox with a quick-change spring system. The steel 8mm bearings provide reduced friction when firing for smooth, buttery smooth action. The Falcon also showcases high-speed 22:1 CNC gears, along with an aluminium cylinder head with a double O-ring for better air seal, as well as a high torque motor.

The ability to pick and choose between 9mm and STANAG mags any time during battle is a huge advantage of this rifle and all this functionality comes right out of the box! The SR4 ST Falcon-W AR-9 AEG is expertly crafted to give you next-level performance in CQB skirmishes thanks to its incredibly compact design and lightweight build. So for all you operator and convert ops types out there, the Falcon has a superior look and functionality that sets it apart from the competition!

Features

  • High-density polymer construction
  • Lightweight and compact - great for CQB
  • Integrated suppressor
  • 6.05mm tightbore inner barrel
  • Version 2 gearbox - Easy upgrades
  • Quick change spring system - Steel spring guide
  • M-LOK handguard with 2x included 20mm RIS rail panels
  • 20mm top RIS rail
  • Rotary drum HOP up unit
  • M4/AR15 style controls
  • 9mm magazine adaptor
  • 9mm and STANAG magazine compatible
  • Finger ridged pistol grip
  • Flip-up, light enhancing sights
  • Rotary adjustable rear sights
  • Adjustable A frame stock - reduces snagging

Package Includes

  • SR4 ST Falcon-W AR-9 AEG
  • 300rnd 9mm magazine
  • 9mm to STANAG magazine converter
  • Light enhancing flip-up ironsights
  • 2x MLOK to RIS rail attachments

Specification

General

Weapon Construction External
Weapon Type
Assault Rifle , Submachine Gun ,
Over 18 Only Icon
Over 18
Yes
Icon UKARA - United Kingdom Airsoft Retailer Association
Defence / UKARA Required
Yes, No,
FPS Icon
FPS (Feet Per Second), using 0.20g BB
Approx. 290fps ± 10%, using 0.20g BB
Package
Included Items
  • Magazine
  • Instruction Manual
  • Cleaning Rod
  • 20mm RIS/RAS Rail Sections
Skill Level Icon
User Skill Level
Starter, Regular Player,

Weight and Dimension

Weight KG Icon
Weight (KG)
Approx. 2.385kg
Weapon Length Collapsed
Length (Collapsed)
61cm
Weapon Length Extended
Length (Extended)
71cm

Construction

Colour Wheel Greyscale
Primary Colour
Black
Construction Icon
Construction
Polymer
Weapon Construction External
External Construction
Polymer
Gearbox Icon
Internal Construction
Polymer
Alloy
Aluminium
Steel

Weapon Specific

Power Source Icon
Powered By
Electric
Blowback Icon
Blowback
None
Weapon Platform
AR Platform, M4 / AR-15 / M16, Long Gun, Submachine Gun, Assault Rifle, ARP9,
Magazine Style Icon
Magazine Style
STANAG, Long Gun Magazine, Assault Rifle, M4 / AR Platform, AR 9mm,
Fire Select Icon
Fire Selector
None
PatrolBase | Fire Select Safe
Safe
Patrol Base | Fire Select - Semi Automatic
Semi Automatic
Patrol Base | Full Automatic
Full Automatic
Weapon Safety Features Icon
Safety Features
Trigger Lock
Shooter Configuration Icon
Shooter Configuration
Right Handed
Weapon Configuration Icon
Weapon Configuration
Standard
Internal Variants
Standard Gears
Standard Gears
Weapon Scale Icon
Weapon Scale
1:1

Hop-Up

Hop-Up Unit Icon
Hop-Up Unit
Yes
Hop-Up Unit Adjuster Icon
Hop-Up Adjuster
Rotary
Hop-Up Unit Location Icon
Hop-Up Location
Behind the ejection port when the cocking handle is pulled back

Furniture

Weapon Furniture Icon
Furniture
  • Flip-Up Ironsights
  • Finger Ridged Pistol Grip
  • MLOK Rail System
  • Light Enhancing Iron Sights
  • Adjustable Ironsights
  • Aperture iron sights
Rail System Icon
Rail System
20mm RIS / RAS , MLOK Rail System,
Icon Stock Positions
Stock Setting
Sliding , Adjustable, M4 Crane Stock,
Weapon Length Extended
Stock Positions
6 Position
Sight Type Icon
Sight Type
Iron Sights , Aperture Iron Sight, Light enhancing aperture iron sights,
Sling Plate Icon
Sling Options
Buffer Plate , Stock ,

Barrel

Outer Barrel Length (in)
5.5''
Icon Thread Type
Outer Barrel Thread Type
Male
Icon Thread Direction
Outer Barrel Thread Direction
CCW (Counter Clockwise)
Outer Barrel Thread Size
14mm
Inner Barrel Diameter
6.05mm
Inner Barrel Length
195mm

Magazine Specific

Magazine BB Capacity
Approx. 300 Rounds
Magazine BB Fill Method
Fill Window
Magazine BB Fill Location
Top

Electric Gun Specific Information

Gearbox
Gearbox Icon
Gearbox Version
V2 Gearbox
Wiring Icon
Gearbox Wiring
Rear Wired
Spring Change Icon
Gearbox Quick Change Spring
Yes
Digital Trigger Icon
Gearbox Electronic Trigger
No
Split Gearbox Icon
Split Gearbox Design
No
Battery Specific
Battery Connector
Patrol Base | Icon | Mini Tamiya
Mini Tamiya
Compatible Battery
Compatible Battery Type
Li-Po
Compatible Battery Configuration
Crane
Compatible Battery Voltage
7.4v

Product Testing Data

Notepad Icon
Test Description
290 +/- 10%
Notepad Icon
Tested Using
ASG Blaster 0.2g
Notepad Icon
Test Date
26/05/2026

Size guide

Joule Charts

Special Instructions

These table can be used as a reference to see if the BB weight you are using will be over acceptable Joulage limits at some Airsoft Sites in the UK. To check if the weight can be used chrono your weapon using the BB you intend to use, and then compare it to the chart.

FPS, Power and Joule Limits can vary from site to site, so please get in touch with where you're going to play with in advance to avoid disappointment.

Suggested limits are based on Joulage Limit rules used Halo Mill: Proving Grounds, with a 350fps limit for Automatic Replicas, 400fps for Semi-Automatic Replicas, and 500fps for Bolt Action Replicas.

Tap the tabs below to open the relevant chart for your replica.

Suggested limits are based on Joulage Limit rules used Halo Mill: Proving Grounds, and is the equivalent of 350fps, using 0.20g BB resulting in an upper limit of 1.14j.

Velocity BB Weight (Grams)
FPS 0.20 0.25 0.28 0.30 0.32 0.36 0.40 0.43 0.45 0.50
250 0.58 0.73 0.81 0.87 0.93 1.05 1.16 1.25 1.31 1.45
260 0.63 0.79 0.88 0.94 1.00 1.13 1.26 1.35 1.41 1.57
270 0.68 0.85 0.95 1.02 1.08 1.22 1.35 1.46 1.52 1.69
280 0.73 0.91 1.02 1.09 1.17 1.31 1.46 1.57 1.64 1.82
290 0.78 0.98 1.09 1.17 1.25 1.41 1.56 1.68 1.76 1.95
300 0.84 1.05 1.17 1.25 1.34 1.51 1.67 1.80 1.88 2.09
310 0.89 1.12 1.25 1.34 1.43 1.61 1.79 1.92 2.01 2.23
320 0.95 1.19 1.33 1.43 1.52 1.71 1.90 2.05 2.14 2.38
325 0.98 1.23 1.37 1.47 1.57 1.77 1.96 2.11 2.21 2.45
328 1.00 1.25 1.40 1.50 1.60 1.80 2.00 2.15 2.25 2.50
330 1.01 1.26 1.42 1.52 1.62 1.82 2.02 2.18 2.28 2.53
335 1.04 1.30 1.46 1.56 1.67 1.88 2.09 2.24 2.35 2.61
340 1.07 1.34 1.50 1.61 1.72 1.93 2.15 2.31 2.42 2.68
345 1.11 1.38 1.55 1.66 1.77 1.99 2.21 2.38 2.49 2.76
350 1.14 1.42 1.59 1.71 1.82 2.05 2.28 2.45 2.56 2.85
355 1.17 1.46 1.64 1.76 1.87 2.11 2.34 2.52 2.63 2.93
360 1.20 1.51 1.69 1.81 1.93 2.17 2.41 2.59 2.71 3.01

Suggested limits are based on Joulage Limit rules used at Halo Mill: Proving Grounds, and is the equivalent of 400fps, using 0.20g BB resulting in an upper limit of 1.49j.

Velocity BB Weight (Grams)
FPS 0.20 0.25 0.28 0.30 0.32 0.36 0.40 0.43 0.45 0.50
250 0.58 0.73 0.81 0.87 0.93 1.05 1.16 1.25 1.31 1.45
260 0.63 0.79 0.88 0.94 1.00 1.13 1.26 1.35 1.41 1.57
270 0.68 0.85 0.95 1.02 1.08 1.22 1.35 1.46 1.52 1.69
280 0.73 0.91 1.02 1.09 1.17 1.31 1.46 1.57 1.64 1.82
290 0.78 0.98 1.09 1.17 1.25 1.41 1.56 1.68 1.76 1.95
300 0.84 1.05 1.17 1.25 1.34 1.51 1.67 1.80 1.88 2.09
310 0.89 1.12 1.25 1.34 1.43 1.61 1.79 1.92 2.01 2.23
320 0.95 1.19 1.33 1.43 1.52 1.71 1.90 2.05 2.14 2.38
330 1.01 1.26 1.42 1.52 1.62 1.82 2.02 2.18 2.28 2.53
340 1.07 1.34 1.50 1.61 1.72 1.93 2.15 2.31 2.42 2.68
350 1.14 1.42 1.59 1.71 1.82 2.05 2.28 2.45 2.56 2.85
360 1.20 1.51 1.69 1.81 1.93 2.17 2.41 2.59 2.71 3.01
370 1.27 1.59 1.78 1.91 2.03 2.29 2.54 2.73 2.86 3.18
380 1.34 1.68 1.88 2.01 2.15 2.41 2.68 2.88 3.02 3.35
390 1.41 1.77 1.98 2.12 2.26 2.54 2.83 3.04 3.18 3.53
400 1.49 1.86 2.08 2.23 2.38 2.68 2.97 3.20 3.34 3.72
410 1.56 1.95 2.19 2.34 2.50 2.81 3.12 3.36 3.51 3.90

Suggested limits are based on Joulage Limit rules used at Halo Mill: Proving Grounds, and is the equivalent of 500fps, using 0.20g BB resulting in an upper limit of 2.32j.

Velocity BB Weight (Grams)
FPS 0.20 0.25 0.28 0.30 0.32 0.36 0.40 0.43 0.45 0.50
250 0.58 0.73 0.81 0.87 0.93 1.05 1.16 1.25 1.31 1.45
260 0.63 0.79 0.88 0.94 1.00 1.13 1.26 1.35 1.41 1.57
270 0.68 0.85 0.95 1.02 1.08 1.22 1.35 1.46 1.52 1.69
280 0.73 0.91 1.02 1.09 1.17 1.31 1.46 1.57 1.64 1.82
290 0.78 0.98 1.09 1.17 1.25 1.41 1.56 1.68 1.76 1.95
300 0.84 1.05 1.17 1.25 1.34 1.51 1.67 1.80 1.88 2.09
310 0.89 1.12 1.25 1.34 1.43 1.61 1.79 1.92 2.01 2.23
320 0.95 1.19 1.33 1.43 1.52 1.71 1.90 2.05 2.14 2.38
330 1.01 1.26 1.42 1.52 1.62 1.82 2.02 2.18 2.28 2.53
340 1.07 1.34 1.50 1.61 1.72 1.93 2.15 2.31 2.42 2.68
350 1.14 1.42 1.59 1.71 1.82 2.05 2.28 2.45 2.56 2.85
360 1.20 1.51 1.69 1.81 1.93 2.17 2.41 2.59 2.71 3.01
370 1.27 1.59 1.78 1.91 2.03 2.29 2.54 2.73 2.86 3.18
380 1.34 1.68 1.88 2.01 2.15 2.41 2.68 2.88 3.02 3.35
390 1.41 1.77 1.98 2.12 2.26 2.54 2.83 3.04 3.18 3.53
400 1.49 1.86 2.08 2.23 2.38 2.68 2.97 3.20 3.34 3.72
410 1.56 1.95 2.19 2.34 2.50 2.81 3.12 3.36 3.51 3.90
420 1.64 2.05 2.29 2.46 2.62 2.95 3.28 3.52 3.69 4.10
430 1.72 2.15 2.40 2.58 2.75 3.09 3.44 3.69 3.86 4.29
440 1.80 2.25 2.52 2.70 2.88 3.24 3.60 3.87 4.05 4.50
450 1.88 2.35 2.63 2.82 3.01 3.39 3.76 4.04 4.23 4.70
460 1.97 2.46 2.75 2.95 3.15 3.54 3.93 4.23 4.42 4.91
470 2.05 2.57 2.87 3.08 3.28 3.69 4.10 4.41 4.62 5.13
480 2.14 2.68 3.00 3.21 3.42 3.85 4.28 4.60 4.82 5.35
490 2.23 2.79 3.12 3.35 3.57 4.02 4.46 4.80 5.02 5.58
500 2.32 2.90 3.25 3.48 3.72 4.18 4.65 4.99 5.23 5.81
510 2.42 3.02 3.38 3.62 3.87 4.35 4.83 5.20 5.44 6.04