CYMA Gen.2 CM.091 M4/AR-15 URX AEG

CYMA
Code: FB4038G2ST
£249.99
  • Full metal construction
  • 6.03mm Tightbore inner barrel
  • Gen.2 - CYMA MOSFET & Reinforced gearbox shell

If you're after a pre-upgraded full metal M4 with a unique look, the CYMA Gen.2 CM.091 M4/AR-15 URX AEG is a fine choice! Part of CYMA's recently revamped "Standard Gen.2" range, the CM.091 is now fitted with CYMA's inline V2 MOSFET and a reinforced gearbox shell, eliminating trigger lock-ups in semi-auto and enhancing durability.

Also inside is a CNC aluminium piston head, a CNC aluminium cylinder head, a polymer piston with a full metal tooth rack and 18:1 ratio steel gears running on 8mm ball-bearing bushings. A high-torque Neodymium magnet motor drives this impressive setup, resulting in an incredible trigger response and an above-average rate of fire.

On the outside, this unique build makes use of a URX-inspired quad-rail handguard, VLTR-style modular stock and a Tango Down-style pistol grip, giving you plenty of accessory options and a unique, customised look. If you're after a rock-solid M4 platform packed with pre-upgraded parts, you're in good hands with the CYMA Gen.2 CM.091 M4/AR-15 URX AEG!

Full description

Description

Starting at the front, we can find an aggressive-looking muzzle brake made from steel. The brake looks fantastic at the front end of this menacing build, but can be swapped out for a tracer unit or suppressor thanks to the common 14mm CCW male threads at the tip of the barrel. The muzzle brake is held on by a grub screw, so make sure you remove this before unscrewing it.

Moving rearwards, we come to the handguard, inspired by the real steel URX free-floated handguard. 20mm Picatinny rails are present at the 3, 6, 9 and 12 o'clock positions, ready for your choice of accessories, from grips to lasers and tactical flashlights. The bottom section of the URX can also be removed to allow an M203 grenade launcher to be mounted directly to the barrel.

Next up, we reach the receiver, made from alloy in a standard M4/AR-15 layout. The fire selector switch is on the left side, just above the pistol grip, offering 3 modes of fire: Safe, semi-automatic and fully automatic, with a 90-degree throw between each. This makes the selector easy and fast to operate without being too easy to bump out of position accidentally, a feature for which the AR-15 platform is universally appreciated.

The magazine release is an ambidextrous example, located on either side of the magazine well. Whether you're left or right-handed, the mag release is well within reach when the CM.091 is held in a firing position, making for easy reloads, as long as you've done some practice. Each mag release button is also textured, ensuring it can be operated easily in all weather conditions.

At the top rear of the receiver, we can find the charging handle, which is constructed from alloy with a steel locking latch. Pulling the charging handle will open the dust cover and retract the mock bolt, revealing the rotary HOP-up inside. The unit is made from alloy, and the adjuster dial is polymer, offering a stronger build than other rotary units.

Turning the dial allows you to tune the CM.091 for different ammo weights, looking for the flattest possible trajectory. When you've finished adjusting, hit the "ping pong paddle" bolt catch on the left side of the receiver to release the mock bolt with a satisfying "clank".

On the bottom of the receiver, we come to the pistol grip, styled after the real steel Tango Down grip often used on real steel HK416 rifles. This grip design is known for its ergonomic shape and comfort for a wide variety of hand sizes, thanks to its bevelled transition between the grip itself and the trigger guard.

The trigger matches the real steel "milspec" trigger, a curved design right in-line with modern and retro military M4 rifles. The trigger guard is an enlarged design, giving you plenty of space for full finger gloves, an essential in CQB, unless you enjoy knuckle shots!

Arriving at the rear, we can find the steel ambidextrous sling plate, which mounts to the rear of the receiver between it and the buffer tube. This plate provides two sling mounting points, one on either side, which are perfectly suited to slings with a "hook" style attachment method, especially single-point slings.

To the rear of the sling plate, we can find a standard M4/AR15 6-position buffer tube, which is constructed from alloy and comes with a VLTR-style "club foot" battery stock installed. The club foot stock features a low-profile adjustment lever, skeletonised design for weight reduction, and QD sling sockets on either side, together with a sling slot for a more traditional sling.

At the rear of the stock we can find a grippy rubber butt pad, complete with chevron checkering to ensure it doesn't slip when shouldered. To install the battery in the CM.091, simply squeeze the two tabs at the toe of the stock together, then, once the tabs are removed from the body of the stock, pull the butt plate down to remove it. With the butt plate removed, you should be able to pull out the battery cap, revealing the battery compartment. We recommend a 7.4V 1450mAh LiPo battery for an easy fit and superb performance.

Features

  • Full metal construction
  • 6.03mm Tightbore inner barrel - Superb accuracy potential
  • CYMA Standard Gen.2 - CYMA MOSFET & Reinforced gearbox shell
  • 14mm CCW male-threaded outer barrel - Tracer/suppressor ready
  • Aggressive muzzle brake pre-installed - Steel construction, mean front end looks
  • URX-style 20mm Picatinny quad-railed handguard - 20mm accessory rails at all points
  • Flip-up iron sights pre-installed - Spring-loaded sights, press the button on the left to deploy/stow
  • 20mm Picatinny railed receiver - Ready for a red dot sight or scope
  • Ambidextrous magazine release - On the magwell, easy reloads for left or right-handed shooters
  • Enlarged trigger guard - Plenty of space inside for full finger gloves
  • Ambidextrous sling plate - Steel construction, ideal for single-point slings
  • Ergonomic pistol grip - Based on the popular "Tango Down" grip, very comfortable for most hands
  • 6-Position M4/AR-15 buffer tube - Adjust the stock to suit your body type and loadout
  • VLTR-style modular stock pre-installed - Ample battery space, QD sling socket, grippy rubber butt plate
  • Rear wired: Deans connector - Recommended Battery: 7.4V 1450mAh LiPo
  • CYMA Standard Gen.2 Version 2 gearbox:
    • 18:1 Ratio steel gears
    • 8mm Ball-bearing bushings
    • Polymer piston with metal full tooth rack
    • CNC Aluminium piston head
    • CNC Aluminium cylinder head
    • High-torque Neodymium magnet motor
    • Quick-change spring guide
    • CYMA V2 In-line MOSFET
  • Compatible with M4/AR-15 AEG Magazines - Plenty of spare mag options

Package Includes

  • CYMA Gen.2 CM.091 M4/AR-15 URX AEG
    • 2 x 150rnd Mid-cap magazine

Specification

Battery Included
Battery Included
No

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 x 2
Skill Level Icon
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

Testing

FPS Icon
FPS, using 0.20g BBs
Approx.345fps ± 10%, using 0.20g BBs
Testing Notes
Tested using 0.20g Delta Armory EAGLE BBs

Weight and Dimension

Weight KG Icon
Weight (KG)
Approx.2.9KG
Weapon Length Collapsed
Length
72.5cm
Weapon Length Extended
Length (Extended)
81cm

Construction

Colour Wheel Greyscale
Primary Colour
Black
Construction Icon
Construction
Steel flash hider, sling plate, castle nut, charging handle latch & body pins. Alloy outer barrel, receiver, buffer tube & trim parts. High density polymer pistol grip & stock. Rubber butt plate.

Weapon Specific

Power Source Icon
Powered By
Electric
Platform
Platform
M4 / AR-15 / M16
Magazine Style Icon
Magazine Compatibility
M4/AR-15 AEG Magazines
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 Lock
Shooter Configuration Icon
Shooter Configuration
Right Handed
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
Inside the ejection port, accessible with the charging handle pulled and the mock bolt locked back.

Furniture

Weapon Furniture Icon
Furniture
  • Railed Handguard
  • Railed Receiver
  • Ambidextrous Magazine Release
  • Ergonomic Pistol Grip
  • AR Buffer Tube
  • Sliding Stock
  • Aperture iron sights
  • Threaded Outer Barrel
  • QD Sling Point
  • Muzzle Brake
  • Ambidextrous Sling Plate
  • Enlarged Trigger Guard
  • Extended magazine catch
  • Rubber butt plate
Rail System Icon
Rail System
20mm RIS / RAS, 20mm Railed Receiver,
Icon Stock Positions
Stock Type
Sliding, Multi-Position,
Weapon Length Extended
Stock Positions
6
Sight Type Icon
Sight Type
Aperture Iron Sight
Sling Plate Icon
Sling Options
Buffer Plate, Stock, QD, Loop,

Barrel

Outer Barrel Length (in)
11''
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
295mm

Magazine Specific

Magazine Type
Magazine Type
AEG, Medium Capacity,
Magazine BB Capacity
Magazine BB Capacity
Approx.150Rounds

Electric Gun Specific Information

Gearbox
Gearbox Icon
Gearbox Version
V2Gearbox
Wiring Icon
Gearbox Wiring
Rear Wired
Spring Change Icon
Gearbox Quick Change Spring
Yes
Motor
Airsoft Motor Icon
Motor Type
High Torque
Battery Specific
Battery Voltage
Battery Voltage
7.4V
Battery Type
Battery Type
Li-Po
Battery Connector
Battery Connector
Patrol Base | Icon | Deans
Deans
Suggested Battery Configuration
Suggested Battery Configuration
Stick or Crane configuration

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