Specna Arms SA-F14 FLEX™ M4/AR-15 AEG; X-ASR MOSFET

Specna Arms
Code: SPE-01-041721-00
£129.99
  • 6.03mm Tightbore inner barrel
  • X-ASR MOSFET pre-installed
  • High-density polymer build

This affordable rifle is perfect for most Airsoft scenarios! It is lightweight and easy to use, making it a great choice for new players or for skirmishers who are looking for a reliable and lightweight backup rifle when their arms get tired on the battlefield.

This, the latest version of the SA-F14, is equipped with the Gate X-ASR smart fuse MOSFET, providing diagnostics and a snappier trigger feel while eliminating trigger lock-ups in semi-auto. While it may be a cheap platform, Specna has definitely given us the good stuff inside!

A highly adaptable platform which can be upgraded and modified to suit any tastes in the future, the SA-F14 makes a perfect entry point into Airsoft for the future skirmisher who doesn't want to be fixed to one configuration. Ideal for a US Army loadout or an Airsofter bitten by the customisation bug, the Specna Arms SA-F14 FLEX™ M4/AR-15 AEG; X-ASR MOSFET is ready to face whatever challenge you set for it!

Full description

Description

If you need a modern M4 platform, ready for any situation, then the Specna Arms SA-F14 FLEX™ M4/AR-15 AEG; X-ASR MOSFETis one to keep an eye on. Constructed to Specna's FLEX™ standard, the SA-F14 boasts a lightweight but durable high-density polymer receiver, handguard, buffer tube, stock and pistol grip, giving you optimal ease of use.

Starting at the front, we find an M4-style Bird Cage flash hider attached to the outer barrel, which sticks out from the front of the CNC aluminium quad-railed handguard. This gives the SA-F14 a classic military look and replicates the real steel platform perfectly. The outer barrel features the common 14mm CCW male threading, ideal for swapping to a sneaky suppressor or tracer unit.

Moving rearwards, you will find the M-LOK handguard, which is made from a durable and lightweight high-density polymer. The handguard is also equipped with attractive angular vent ports to give the replica a cutting-edge look. The M-LOK slots are present at the 3, 6 & 9 o'clock positions with a 20mm Picatinny rail up top.

Up top, this rifle is equipped with flip-up aperture iron sights. The benefit of a modern M-LOK handguard is that, in its slick configuration, the handguard is lightweight and surprisingly ergonomic, meaning you don't need to add rail covers to avoid the discomfort as you might with a 20mm quad rail.

Next up, we reach the receiver, which is instantly recognisable as the common M4/AR-15 configuration, with its controls laid out in a considerate and ergonomic manner, allowing the SA-F14 to be manipulated quickly and instinctively by veterans or learned rapidly by new users.

The fire selector lever is situated just above the pistol grip, on the left side of the AEG, providing 3 modes of fire: SAFE, SEMI, and AUTO, with a 90-degree throw between each. The fire modes are helpfully marked in bold recessed text on the receiver, and the selector switch locks positively into each mode with the help of texture on its surface. The magazine release is on the right side of the magazine well.

Pulling back the extended charging handle, at the top rear of the receiver, will open the dust cover and retract the mock bolt carrier, which allows access to the rotary HOP-up adjuster. This HOP-up design provides fine increments of adjustment and holds its setting effectively. The charging handle has an extended latch for easier access, allowing even gloved users to access the HOP-up unit, though you may need to remove your glove to adjust the unit!

The pistol grip of the SA-F14 is an M16A2/M4A1 style pistol grip, also known as the "A2" finger ridged grip. The A2 has diamond checkering on either side and linear texture on the back strap to provide excellent gripping qualities. The finger ridge helps you keep hold of the rifle and prevent the grip from slipping out of your hands when held in a single hand. As with most M4/AR-15 AEGs, this grip is compatible with aftermarket M4/AR-15 AEG grips, ideal for customisation addicts!

The battery compartment is inside the crane stock, accessible by squeezing the two tabs at the toe of the stock together, after which you can lift the butt plate off, remove the battery plug and make use of the stock's built-in battery compartment to house a chunky nunchuck/crane-style battery. For the SA-F14, we recommend a 7.4V 1300mAh LiPo crane/nunchuck battery for an easy fit and great performance.

The Crane stock also includes a pair of QD sling sockets, one on each side, allowing for QD sling swivels to be added for a quick, removable sling setup. Conventional sling slots (aka "footman loops") are also present for those who want a two-point sling but prefer the old-fashioned way. The butt plate is also made from grippy rubber, ensuring your SA-F14 doesn't slip off your shoulder at a critical moment.

Inside the Gen.2 SA-F14, we are treated to the Aether-enhanced gearbox shell, the same reinforced V2 shell used in Specna's top-tier PRIME series. The Aether features a reinforced spine and ports throughout the design to allow for easy tuning, ideal for the techy types. Also inside are 18:1 ratio steel gears running on 8mm bushings. The spring guide is an ESA quick-change example, making power tuning a breeze for those who want to get as close to site limits as possible.

The inner barrel is a 6.03mm tightbore paired with the Magnus TDC rotary HOP-up unit, giving you superb accuracy potential and the most up-to-date HOP-up unit style for M4/AR-15 AEGs. All internal parts are Tokyo Marui AEG spec, meaning aftermarket upgrades are a go for the performance seekers!

This revamped SA-F14 is also equipped with the Gate X-ASR MOSFET, a "Smart Fuse" type device designed to provide diagnostics and warn the user of certain errors. The X-ASR also enhances electrical efficiency and is pre-wired to a Deans battery connector, offering lower resistance than the mini-Tamiya connector, which results in a snappier trigger feel and a slight boost in rate of fire.

This lightweight platform is the perfect introduction to Airsoft for any new player who wants a multi-role rifle that is lightweight and extremely beginner-friendly. Plus, the added protection of the X-ASR means you can rest easy knowing that your internals are safe at all times.

Features

  • 6.03mm Tightbore inner barrel - Great accuracy potential
  • High-density polymer construction
  • Bird cage Flash Hider pre-installed - The iconic M4/M16 muzzle device
  • 14mm CCW Male threaded outer barrel - Tracer/suppressor ready
  • M-LOK handguard - Picatinny rail at 12 o'clock, M-LOK slots at other positions
  • Picatinny sections preinstalled
  • Flip-up aperture iron sights pre-installed - Adjustable for windage and elevation, 2 apertures to choose from
  • 20mm Picatinny railed receiver - Ready for red dot sights, PEQ lasers or scopes to be mounted
  • Rotary adjustable HOP-up unit - The latest M4/AR-15 design, holds its setting well and allows for fine adjustment
  • Finger ridged "A2" pistol grip - Comfortable for most hand sizes, textured for extra traction
  • Flat mil-spec trigger guard - Matches real US Army-issued M4A1 rifles
  • 3-Position fire selector switch - SAFE, SEMI AUTO & FULL AUTO, 90-degree throw between each mode
  • Extended charging handle - Fast access to the HOP-up unit for quick mid-game adjustment
  • 6-Position M4/AR-15 buffer tube - Adjust the stock quickly and easily to suit your body type or loadout
  • Crane stock pre-installed - Plenty of battery space, QD sling sockets built-in
  • Version 2 gearbox:
    • Alloy shell
    • 18:1 Steel gears
    • 8mm Bushings
    • ESA Quick Change Spring System
    • Gate X-ASR MOSFET
  • Rear wired: Deans battery connector - Recommended battery: 7.4V 1300mAh LiPo in crane/nunchuck config.
  • Compatible with M4/AR-15 AEG magazines - Spares are cheap and always available!

Package Includes

  • Specna Arms SA-F14 FLEX™ M4/AR-15 AEG; X-ASR MOSFET
  • 380rnd High-Capacity magazine

Specification

General

Weapon Construction External
Platform Type
Assault Rifle
Over 18 Only Icon
Over 18
Yes
Icon UKARA - United Kingdom Airsoft Retailer Association
Defence / UKARA Required
Yes, No,
Screwdriver Icon
Prebuilt
Yes
Package
Included Items
Magazine
Skill Level Icon
Skill Level
Beginner Player
Patrol Base - Warning Icon
Warnings
Li-Po
Li-Po - Never Leave Charging Unattended
Li-Po - Only Use Approved Chargers
Li-Po - Charge in a Fire Safe Area

Weight and Dimension

Weight KG Icon
Weight (KG)
Approx.2.17KG
Weapon Length Collapsed
Length
69cm
Weapon Length Extended
Length (Extended)
78cm

Construction

Colour Wheel Greyscale
Primary Colour
Black
Construction Icon
Construction
Alloy flash hider, outer barrel & trim parts. High density polymer handguard, stock, buffer tube, receiver & pistol grip. Steel dust cover, pins and screws.

Weapon Specific

Power Source Icon
Powered By
Electric
Platform
Platform
Assault Rifle, M4 / AR-15 / M16, M4/AR-15 AEG,
Fire Select Icon
Fire modes
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 Disconnect
Shooter Configuration Icon
Shooter Configuration
Right Handed
Weapon Configuration Icon
Platform Configuration
Standard
Weapon Scale Icon
Platform Scale
1:1
Suggested BB Weight
Suggested BB Weight
0.25g

Hop-Up

Hop-Up Unit Adjuster Icon
HOP-Up Adjuster Type
Rotary
Hop-Up Unit Location Icon
HOP-Up Adjustment Location
Behind the mock bolt carrier, accessible through the mock ejection port when the charging handle is pulled and held back.

Furniture

Weapon Furniture Icon
Furniture
  • Railed Handguard
  • Railed Receiver
  • Finger Ridged Pistol Grip
  • AR Buffer Tube
  • Sliding Stock
  • Flip-Up Ironsights
  • Bird Cage Flash Hider
  • Threaded Outer Barrel
  • QD Sling Point
  • Extended Charging Handle
  • sling points front and rear
  • Sling point on stock
  • M-LOK Handguard
  • M-LOK Picatinny rails x 3
  • Rubber butt plate
Rail System Icon
Rail System
Pre-installed 20mm Picatinny rail sections for M-LOK, 20mm Railed Receiver,
Icon Stock Positions
Stock Type
Sliding, M4 Crane Stock, Multi-Position,
Weapon Length Extended
Stock Positions
6
Sight Type Icon
Sight Type
Iron Sights, Aperture Iron Sight,
Sling Plate Icon
Sling Options
Stock, Handguard, QD, Loop,

Barrel

Outer Barrel Length (in)
10''
Icon Thread Type
Outer Barrel Thread Type
Male
Icon Thread Direction
Outer Barrel Thread Direction
CCW (Counter Clockwise)
Outer Barrel Thread Size
Outer Barrel Thread Size
14mm
Inner Barrel Diameter
Inner Barrel Diameter
6.03mm
Inner Barrel Length
Inner Barrel Length
255mm

Magazine Specific

Magazine Type
Magazine Type
AEG, Medium Capacity,
Magazine BB Capacity
Magazine BB Capacity
Approx. 125 Rounds

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
Motor
Airsoft Motor Icon
Motor Type
Standard
Battery Specific
Battery Voltage
Battery Voltage
7.4V
Battery Connector
Battery Connector
Patrol Base | Icon | Deans
Deans

Testing

FPS Icon
FPS, using 0.20g BBs
Approx.310fps ± 10%, using 0.20g BBs

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