Evolution Reaper S EMR AR-9 AEG; ETS II ETU

Evolution
Code: EC61AR-ETS
£169.99
  • 6.01mm Tightbore inner barrel
  • ETS II MOSFET/ETU pre-installed
  • Carbontech reinforced polymer receiver

If you love the 9mm AR aesthetic and require an ultra-strong yet lightweight build, the Evolution Reaper S EMR AR-9 AEG; ETS II ETU should be right up your street! Constructed with a unique receiver design using Evolution's proprietary Carbontech™ engineering polymer, a CNC aluminium handguard and a CNC aluminium buffer tube, the Reaper S EMR keeps overall weight to a minimum without compromising when it comes to quality!

Inside, the Reaper S EMR is well equipped; rocking a TM-spec V2 gearbox with 18:1 steel gears running on 8mm oil-less steel bushings, a polymer piston with a steel tooth rack, a quick change spring guide and a sector gear delayer to maintain reliable feeding at high speed. Also inside is a 6.01mm tightbore inner barrel which boosts air efficiency and accuracy along with the ETS II programmable MOSFET/ETU, offering a wealth of programmable fire mode options while keeping your gearbox running at maximum efficiency.

Whether you vibe with the looks of real steel high-speed PCC setups or you need a platform which handles flawlessly with top-notch build quality, solid internals and low overall weight, the Evolution Reaper S EMR AR-9 AEG; ETS II ETU fits the bill better than most!

Full description

Description

If you're looking for an AR-9 AEG platform which stands out alongside others, the Evolution Reaper S EMR AR-9 AEG; ETS II ETU is a fine choice! Boasting an ultra-strong Carbontech™ polymer body and CNC aluminium handguard designed in Italy, this AR-9 is superbly made; a lightweight, performance-focussed build which doesn't compromise strength or fit and finish!

Inside, the Reaper S EMR is well equipped, rocking internals based around the prolific version 2 gearbox with full Tokyo Marui internal parts compatibility. Inside, we are equipped with 18:1 steel gears, a polymer piston with a steel tooth rack, a sector gear delayer, a quick change spring guide and the Evolution ETS II programmable MOSFET to top it off. Also inside is a 6.01mm tightbore inner barrel, offering superb accuracy with high-quality ammo and a boost in FPS from the same strength spring.

The ETS II is Evolution's own ETU/MOSFET; designed and manufactured in Italy and offers a massive range of programmable fire mode options along with quality-of-life features other ETUs lack. Fire mode options include 3 or 5-round burst, binary trigger, sniper delay, AUG mode and ramping full-auto; giving you the standard ETU options with extra specialised features, resulting in a highly versatile platform suitable for a range of battlefield roles!

Starting at the tip of the 8.5-inch outer barrel we can find an M4/AR-15 birdcage flash hider mounted to 14mm CCW male threading. The outer barrel is constructed from alloy to provide a strong backbone and keep the tightbore inner barrel nice and straight for perfect accuracy. If you want to mount a tracer unit, suppressor or alternative muzzle device all you need to do is unscrew the flash hider and mount your preferred device thanks to the common 14mm CCW threading at the tip of the barrel.

The CNC aluminium handguard is equipped with M-LOK negative space attachment slots at the 3, 6, and 9 o'clock positions, ready for any M-LOK accessories to be directly mounted. M-LOK is one of the latest accessory interfaces to hit the market, both for real steel and Airsoft, allowing you to fit M-LOK vertical or angled grips directly, or mount 20mm Picatinny rail adapters for M-LOK to make use of 20mm Picatinny grips, flashlights and laser units.

With a 20mm Picatinny rail at the 12 o'clock position, the handguard also provides a mounting point for the included flip-up aperture iron sights which can either be left flipped down or removed entirely if you prefer to use a red dot sight or scope. The irons can be raised by hand but need the button on the left side to be pressed to fold them down, ensuring a mid-skirmish bump won't mean you lose your sights! The sights are also fully adjustable for both windage and elevation and offer two aiming apertures; one wide aperture for low-light work and full auto fire and a finer aperture well suited to bright conditions and accurate semi-automatic fire.

The handguard's upper Picatinny rail meets the 20mm rail on the receiver seamlessly, allowing large optical sights and red dot sight + magnifier combos the extra space they need to be mounted easily. The receiver itself is constructed from fibre-reinforced high-density polymer with a beautiful matte finish and a high-quality textured feel, keeping the weight low and the strength high, with added scratch resistance so the odd mid-skirmish bump or scrape doesn't mean your pride and joy looks scruffy.

Regarding the controls, this SMG is patterned after the M4/AR-15 platform, offering comfortable and well-placed controls that are easy to master for almost any user. The fire selector switch can be found on the left side of the receiver, just above the pistol grip, offering 3 modes of fire; SAFE, SEMI-AUTOMATIC and FULL AUTO, with a 90-degree throw between each mode. Being fitted with the Evolution ETS II MOSFET/ETU system, the Reaper S EMR is also able to be programmed for a variety of alternative fire modes, including burst mode, ramping full auto, binary trigger, AUG mode and sniper delay.

The magazine release is located centrally, just behind the magazine well, making it easy to operate for both left and right-handed shooters. This magazine release is definitely not one you will struggle to find in the heat of the moment; its prominent design and serrated contact surface mean fast reloads are a breeze, even with the adrenaline pumping!

The pistol grip of the Reaper S boasts a refined grip angle for greater comfort when shooting with the stock fully collapsed and in more modern shooting stances. Each flank of the pistol grip includes fine crackle texturing, with additional linear texture on the front and back straps for perfect wet weather handling. The trigger is a "flat" trigger with a short finger ledge and textured front, making it ideal for pumping out rapid semi-automatic shots. The trigger guard is built into the receiver, improving strength and allowing gloved fingers easier access to the trigger than the standard AR flat trigger guard.

The charging handle can be found at the top rear of the receiver and features an extended latch which protrudes on the left side for fast access and one-handed operation. When the charging handle is pulled, the mock bolt carrier will retract and reveal the rotary HOP-up unit within the mock ejection port. The rotary HOP-up unit is the latest design for the M4/AR-15 platform and improves on the older "gear" unit with finer increments of adjustment and improved ability to hold its setting under the vibrations of full auto fire.

The HOP-up allows the user to adjust the amount of backspin applied to the BB and tune it to provide optimum range and a stable flight path with various weights of BBs. For this SMG, we recommend 0.25g for the best combination of projectile speed, wind resistance, and range. When you have adjusted your HOP-up, you can release the charging handle to close the ejection port and flip up the dust cover to keep your internals protected from the elements.

At the rear of the receiver, we can find a steel sling plate, offering a sling loop on either side, ideal for left or right handed shooters. The sling plate location is ideal for single-point slings but can be used for a two-point sling if you add a sling mount to the handguard. Next up, we come to the M4/AR-15 buffer tube which is constructed from aluminium and offers 6 positions of adjustment so you can adjust the stock to suit your body type and loadout perfectly. The stock itself is the Crane stock, a very practical design in Airsoft terms with plenty of battery space inside.

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 nunchuck/crane-style battery. Inside, you'll find a Deans battery connector to which you mount your battery. We recommend a 7.4V 1450mAh 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 Reaper S EMR doesn't slip off your shoulder at a critical moment.

Inside, the Reaper S EMR is rocking respectable internals based around the Version 2 gearbox, offering plenty of aftermarket upgrade options for the tuning addicts. The gearbox shell is alloy and reinforced, the 18:1 steel gearset runs on 8mm oil-less steel bushings, a sector gear delayer ensures feeding is reliable at high speeds and the polymer piston with full steel tooth rack provides low weight and strength in equal measure. The inner barrel also has a super-tight 6.01mm bore, giving the Reaper an accuracy edge with high-quality ammo and boosting FPS by enhancing air efficiency even more than common 6.03mm tightbore barrels!

The Evolution ETS II programmable ETU/MOSFET adds advanced functionality to the mix, offering programmable fire modes including 3 or 5-round burst, binary trigger, ramping full auto, sniper delay and AUG mode. Programming is carried out purely through the trigger and fire selector, meaning no extra parts are needed to take full advantage of the ETS II's advanced features. While alternative fire modes are great fun and very practical, the ETS II also offers several quality-of-life features, from auto motor diagnostics to low voltage cutoff and cycle completion, ensuring your gearbox is running efficiently with minimal parts wear.

If you're looking for an ultra-light yet strong AR-9 build with advanced internal functionality, the Evolution Reaper S EMR AR-9 AEG; ETS II ETU is a great choice. With a style which stands out next to other AR-9s, pre-upgraded internals and a wider range of fire mode options than most of its rivals, the Reaper S EMR is a unique and sleek piece of kit!

Features

  • 6.01mm Tightbore inner barrel - Great accuracy potential
  • CNC Aluminium handguard & buffer tube - Strong, light & well finished
  • Carbontech™ Engineering polymer body - Super strong, unique Evolution styling
  • 14mm CCW Male threaded outer barrel - Tracer/suppressor ready, barrel extension required
  • Flip-up iron sights pre-installed - Mounted to the top rail, windage & elevation adjustable
  • CNC Aluminium M-LOK handguard - M-LOK slots at 3, 6, & 9 o'clock, mount M-LOK accessories
  • 20mm Picatinny top rail - Compatible with 20mm Picatinny accessories
  • Extended charging handle latch - Easy access to the HOP-up unit for adjustment
  • Ambidextrous magazine release - Paddle style release, easy to reach from either side
  • 20mm Picatinny railed receiver - Ready for a red dot sight or rifle scope
  • Rotary adjustable HOP-up unit - Easy to adjust in fine increments, holds its setting well long-term
  • Ergonomic pistol grip with reduced grip angle - Great for modern shooting stances, very comfy
  • 6-Position M4/AR-15 buffer tube - Adjust the stock to suit your body type perfectly
  • Crane style stock - Plenty of space for nunchuck batteries, QD sling sockets on each side
  • Version 2 Gearbox:
    • Reinforced alloy gearbox shell
    • 18:1 Steel gears
    • 8mm Oil-less steel bushings
    • Sector gear delayer
    • Polymer piston with full steel tooth rack
    • Quick change spring system
    • ETS II MOSFET/ETU
  • ETS II MOSFET/ETU Functions:
    • 3/5rnd Burst mode
    • Binary trigger
    • Ramping full-auto
    • Sniper delay
    • AUG Mode
    • Auto-motor diagnostics
    • Auto cycle control
    • Low voltage cutoff/Voltage detection
  • ETS II Programming instructions available here
  • Compatible with Evolution Reaper AR-9 AEG Magazines

Package Includes

  • Evolution Airsoft Reaper S EMR AR-9 AEG; ETS II ETU
    • 110rnd Medium capacity magazine
    • Alloy flash hider
    • M-LOK Stubby vertical foregrip

Specification

General

Weapon Construction External
Weapon Type
Submachine Gun
Over 18 Only Icon
Over 18
Yes
Icon UKARA - United Kingdom Airsoft Retailer Association
Defence / UKARA Required
Yes, No,
FPS Icon
FPS, using 0.20g BB
Approx.300fps ± 10%, using 0.20g BB
Site Legal Icon
Site Legal, using 0.20g BB
Yes
Screwdriver Icon
Pre-Built
Yes
Package
Included Items
  • Magazine
  • Flash Hider
  • Stubby Vertical foregrip
Skill Level Icon
User Skill Level
Regular 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. 2.1kg
Weapon Length Collapsed
Length (Collapsed)
65.5cm
Weapon Length Extended
Length (Extended)
74cm

Construction

Colour Wheel Greyscale
Primary Colour
Black
Construction Icon
Construction
Alloy outer barrel, iron sights & charging handle. Carbontech reinforced polymer receiver, stock & pistol grip. CNC Alu handguard. Alu buffer tube. Steel dust cover, sling plate & body pins.
Weapon Construction External
External Construction
Polymer
Carbontech
Alloy
Aluminium
Steel
Gearbox Icon
Internal Construction
Polymer
Alloy
Aluminium
Steel
Brass

Weapon Specific

Power Source Icon
Powered By
Electric
Blowback Icon
Blowback
None
Weapon Platform
Submachine Gun, AR-9, Evolution Reaper Carbontech AR-9 SMG AEGs,
Magazine Style Icon
Magazine Style
Long Gun Magazine, Submachine Gun, AR-9,
Fire Select Icon
Fire Selector
PatrolBase | Fire Select Safe
Safe
Patrol Base | Fire Select - Semi Automatic
Semi Automatic
Patrol Base | Full Automatic
Full Automatic
Programmable
Weapon Safety Features Icon
Safety Features
Trigger Lock
Shooter Configuration Icon
Shooter Configuration
Right Handed
Weapon Configuration Icon
Weapon Configuration
Standard
Weapon Scale Icon
Weapon Scale
1:1
Suggested BB Weight
0.25g

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
Inside the ejection port, accessible with the charging handle pulled and held back.

Furniture

Weapon Furniture Icon
Furniture
  • Railed Handguard
  • Railed Receiver
  • Ambidextrous Magazine Release
  • Ergonomic Pistol Grip
  • AR Buffer Tube
  • Sliding Stock
  • Flip-Up Ironsights
  • Bird Cage Flash Hider
  • Threaded Outer Barrel
  • QD Sling Point
  • Ambidextrous Sling Plate
  • Enlarged Trigger Guard
  • Extended Charging Handle
  • M-LOK Handguard
  • Rubber butt plate
Rail System Icon
Rail System
20mm RIS / RAS, 20mm Railed Receiver, M-LOK,
Icon Stock Positions
Stock Setting
Sliding, Multi-Position, M4 Crane Stock,
Weapon Length Extended
Stock Positions
6 Position
Sight Type Icon
Sight Type
Iron Sights, Aperture Iron Sight,
Sling Plate Icon
Sling Options
Buffer Plate, QD,

Barrel

Outer Barrel Length (in)
8.5''
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
6.03mm
Inner Barrel Length
230mm

Magazine Specific

Magazine Type
AEG, Medium Capacity,
Magazine BB Capacity
Approx. 110 Rounds
Magazine BB Fill Method
Speed Loader
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
Yes
Motor
Airsoft Motor Icon
Motor Type
Standard
Battery Specific
Battery Connector
Patrol Base | Icon | Deans
Deans
Compatible Battery
Compatible Battery Type
Li-Po
Compatible Battery Configuration
Crane
Compatible Battery Voltage
7.4v

Product Testing Data

Notepad Icon
Test Description
300 FPS +/- 10%
Notepad Icon
Tested Using
0.20g Delta Armory Diamond BBs
Notepad Icon
Test Date
14/03/2025

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