CYMA CM.517 M4 Combat Machine

CYMA
Code:
£109.99
  • 20mm quad rail
  • Great starter gun
  • Vast attachment range


CYMA brings us a fantastic M4 rifle at this price range. Great for starting your Airsoft skirmish journey, this electric 6mm BB gun, commonly known as an AEG is built and designed to replicate the M4A1 used by armed forces around the world. With 7 inch 20mm RIS rails, you have the option to add any accessories to suit your playstyle, with the length being good middle ground between close quarters battle (CQB) and commando size.

Full description

Description

A replica of one of the most recognisable weapons platforms in use today. The CM.517 M4 Combat Machine is constructed with a tough but extremely lightweight polymer receiver, stock, buffer tube, handguard and sights, with an alloy barrel and internals.

At the very front of the gun is a polymer flash hider, adding to the militant style of the rifle, being attached to the barrel via 14mm counter clockwise thread, should you want to swap it out for a different variant, or maybe add a suppressor or tracer unit. Whatever you're style, you've got that option!

The front sight features a triangular design with sling adaptor in line with the real M4A1, with a high profile, allowing for ease of aiming in that your head won't need to be as close to the rifle as with other sight layouts, letting you speedily pick off those longer range targets with ease. The removable rear sight can be adjusted for windage / elevation depending on the skirmish at hand or weather conditions.

Moving along to the barrel we come to the Quad Rail 20mm RIS / RAS handguard / rail system enabling a multitude of attachment such as grips, torches, lasers and sights, again giving you a vast variety of playstyle options as big as your imagination, as well as a full length, topside 20mm Rail for attaching larger sights and scopes at the rear of the rail.

The body of the rifle is constructed from sturdy, dense polymer and features dummy bolt catch to replicate the real thing. The fire select is for right handed use, easily switching modes with the thumb, with the mag release on the right hand size of the gun easily accessed with the index finger.

The classic style M4 STANAGo magazine is a 300rnd high cap magazine, easily wound from the bottom of the mag to keep you shooting full auto for long periods of time.

By pulling back the bolt catch, the internal Hop-up unit is revealed, adjusted by turning the gear, giving you the option to set the BB spin, adjusting for windage, elevation and range.

The stock of the weapon features a Six Point adjustment system, allowing you to adjust the weapon between 70cm - 80cm, for a more comfortable shoulder weld, depending on your size. The butt plate of the stock is made from rubber, providing a slip free surface when using the weapon.

As this rifle is rear wired, to access the battery connector simply pull the adjuster tab on the stock down and slide the stock off to reveal the buffer tube, and Tamiya connector. A wider range of batteries can be used, such as crane stock batteries or Li-Po which fit down the buffer tube. We recommend 8.4v NiMh Crane Stock Battery or 7.4V 1300mAh 15C LiPo Stick Battery for this rifle.

The tightbore barrel is a good addition in that it allows for greater accuracy and range, able to hit those far away targets than other M4's missing this feature.

This is the perfect starter weapon for those wanting to get into skirmishing and start playing. With it's tough lightweight design, it's a great choice for those run and gun speedy players, looking for something that will perform in both a CQB and larger scale environments. The weapon comes with everything you need right out of the box, allowing you to get stuck and start taking objectives and downing opponents. With a huge array of potential improvements thanks to the 20mm quad rail system, you can customise to your hearts content going forward. A cheap and easy way to start playing, the CM.517 has something for every new player.

Features: 

  • Great starter weapon
  • Four point 20mm RIS / RAS handguard
  • Full length 20mm top rail for sights and scopes
  • Accepts a huge variety of attachments and accessories
  • Six position sliding adjustable stock
  • Rubberised butt plate
  • Rear wired alloy gearbox
  • Windage / elevation adjustable ironsights
  • Tool-less removable rear ironsight
  • Bayonet lug
  • Accepts a wide variety of Airsoft STANAG magazines
  • Textured and finger ridge pistol grip
  • Mock charging handle, forward assist and bolt cover
  • Charging handle pulls back bolt cover to reveal the Hop-up unit
  • Front sling loop and rear sling plate
  • Polymer adjustable Hop-up unit

Package Includes:

  • CM.517 M4 Combat Machine
  • 300rnd High Cap magazine
  • Sling

Specification

General

Weapon Construction External
Weapon Type
Assault Rifle
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. 330fps ± 10%, using 0.20g BB
Site Legal Icon
Site Legal, using 0.20g BB
Yes
Screwdriver Icon
Pre-Built
Yes
Package
Included Items
  • Magazine
  • Instruction Manual
  • Battery
  • EU Pin Charger
  • Basic Sling
Skill Level Icon
User Skill Level
Starter

Weight and Dimension

Weapon Length Collapsed
Length (Collapsed)
700cm

Construction

Colour Wheel Greyscale
Primary Colour
Black, Tan ,
Two Tone Icon
Pre Two-Toned
No
Construction Icon
Construction
Full Polymer receiver, pistol grip and stock
Weapon Construction External
External Construction
Polymer
Gearbox Icon
Internal Construction
Polymer
Alloy

Weapon Specific

Power Source Icon
Powered By
Electric
Blowback Icon
Blowback
None
Weapon Platform
M4 / AR15 / M16
Magazine Style Icon
Magazine Style
STANAG
Fire Select Icon
Fire Selector
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
Weapon Scale Icon
Weapon Scale
1:1
Suggested BB Weight
0.2g

Hop-Up

Hop-Up Unit Icon
Hop-Up Unit
Yes
Hop-Up Unit Adjuster Icon
Hop-Up Adjuster
Gear
Hop-Up Unit Location Icon
Hop-Up Location
Behind mock Bolt cover, when charging handle to the rear

Furniture

Weapon Furniture Icon
Furniture
  • Railed Handguard
  • AR Buffer Tube
  • Railed Receiver
  • Finger Ridged Pistol Grip
  • Ironsights
  • Sliding Stock
  • Standard
Rail System Icon
Rail System
20mm RIS / RAS
Icon Stock Positions
Stock Setting
Sliding
Weapon Length Extended
Stock Positions
5 Position
Sight Type Icon
Sight Type
Aperture Iron Sight
Sling Plate Icon
Sling Options
Stock , 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
14mm
Inner Barrel Diameter
6.03mm
Inner Barrel Length
295mm

Magazine Specific

Magazine Type
AEG
Magazine BB Capacity
Approx. 300 Rounds
Magazine BB Fill Method
Fill Window
Magazine BB Fill Location
Top
Magazine Gas 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
No
Digital Trigger Icon
Gearbox Electronic Trigger
No
Motor
Airsoft Motor Icon
Motor Type
Standard
Battery Specific
Battery Connector
Patrol Base | Icon | Mini Tamiya
Mini Tamiya
Included Battery
Battery Type
Ni-Mh
Battery Voltage
8.4V
Battery Amperage
1100mAh
Suggested Battery
Suggested Battery Type
Ni-Mh
Suggested Battery Configuration
Crane
Suggested Battery Voltage
9.6v

Product Testing Data

Notepad Icon
Test Description
Tested using 0.2g BBs
Notepad Icon
Test Date
10/03/2016

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

Customer reviews

5 / 5
1 review for CYMA CM.517 M4 Combat Machine
Reviews.co.uk customer reviews
Anonymous
Written on 19/11/2020
Got this as a first buy for my lad & he loves it.
Rated 5 out of 5

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