CYMA CM.518 M4 W/ Custom Muzzle Brake, Black - Patrol Base

1. Home
2. Airsoft Guns
3. Airsoft Assault Rifles
4. Airsoft M4/AR-15 Rifles

CYMA CM.518 M4 w/ Custom Muzzle Brake, Black Featured video Cyma CM.518 - Dark Earth - Airsoft Replica Unboxing View 1 related video CYMA CM.518 M4 w/ Custom Muzzle Brake Code: … (not selected) £99.99 Quantity Add to Cart Alert me when back in stock Spend £0.00 more to apply for finance with

• Unique compensator
• M-LOK handguard
• 21'' Monolithic top rail

The receiver style of the CM.518 has changed in our most recent batch. The new receiver lacks the finger ridges present on older models and is closer to a milspec M4A1 receiver design. Images will be updated shortly to reflect this.

Custom external components come together to create one unique looking M4. Constructed from tough, but lightweight polymer, the M4 is a solid platform, supported by many systems and featuring a highly customisable top rail, which in total is 21'' in length, there are a huge array of options to customise this AEG.

With this rifle being on the longer side, it's a perfect entry level custom M4 for skirmishing outdoors and taking out longer range targets.

Full description

Delivery & Returns

Fast Delivery

If you have items in your basket from our European Warehouse, the minimum order value is £25. This is to cover EU shipping costs. The minimum order value includes the value of any items from our UK Warehouse.

Delivery & Postage

Here at Patrol Base, we send all our packages from our Warehouse based in the UK with the exception of European Warehouse Items. All of our parcels are sent with specially picked couriers to ensure your parcels get to you on time and in one piece.

For more information please check out our Delivery Information Page.

Estimates

Below are some rough postage prices for orders. Please note these are subject to change and are only a rough guide. For a more accurate postage estimate please use the Postage Calculator at the basket.

UK 3-5 day Standard

£6.95

From

Dispatched with 24hr UK mainland

£8.95

From

Highlands / Islands

£24.99*

From

* Please note that Scottish Highlands, and Islands postage prices can vary wildly. Please refer to the Postage Calculator at the basket for the lowest possible price.

Returns

We want you to be absolutely happy with our products and services, so we provide the simple Patrol Base guarantee: if on receiving your item you are unhappy with your item for any reason then simply send it back to us. We will replace or refund the item.

You can return any item for any reason whatsoever, even if you have just changed your mind, within 14 days of receipt of the order. This is in addition to your rights under the Consumer Protection (Distance Selling) Regulations 2000.

For more information on returning products, and how to do it please visit our Returns Policy Page.

Ask players a question Help Size guide Share Facebook Twitter Description

Description

The receiver style of the CM.518 has changed in our most recent batch. The new receiver lacks the finger ridges present on older models and is closer to a milspec M4A1 receiver design. Images will be updated shortly to reflect this. Our current batch of CYMA Sport AEGs is NOT supplied with a battery or charger. We recommend using a 7.4V 1300mAh LiPo battery and a LiPo Balance Charger. A brief reminder never to leave your battery on charge unattended and always use a Battery Safe Charging Bag

This electric Airsoft replica of one of the most widely used and iconic weapon platforms in use today. However, the CM.518 features a custom muzzle break design for a unique style and functionality. The rifle's receiver, stock, buffer tube, handguard and sights are built from tough but extremely lightweight polymer, with a reliable alloy barrel and internals for accurate and reliable shooting.

Unique to the CM.518 is the custom muzzle break compensator attached to the front handguard, giving it a mean aggressive look, but more importantly, allowing for a whopping 21" of 20mm RIS / RAS rail, as well as two 3'' and a bottom 3'' rail systems at the very front of the rifle, and M-LOK functionality on the sides of the handguard. This gives the M4 an insane amount of customisation options, be they sights, scopes, torches, lasers, PEQ units, you name it, this gun will probably accommodate it. However, later on down the line the muzzle can be removed by releasing the two screws at the front of the rail, allowing the compensator to be simply pulled off to reveal a 14mm CCW Thread and standard M4 / AR Flash Hider for attaching silencers and suppressors.

The rail continues on to the body of the rifle to give it that cohesive and monolith look as well as giving you the option to equip a different sight at a later date.

In order to best replicate the real-world M4, the body of the rifle features a dummy bolt catch, and as opposed to the original, this Airsoft replica is constructed from lightweight but dense polymer, allowing you to easily manoeuvre around the field. The fire select is for right-handed use and is easily switched between modes with the thumb, with the mag release on the right-hand side of the gun easily accessed with the trigger finger.

Included is a classic style STANAG magazine, which is a 300-round high-cap magazine, easily wound from the bottom of the mag to keep you shooting full auto for extended periods of time.

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

The stock of the M4A1 can be adjusted at six locking points, allowing you to adjust the length of the stock between 70cm and 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 rifle.

This rifle is rear wired, which means that the battery connector is accessed by simply pulling the adjuster tab on the stock down and sliding the stock off to reveal the buffer tube and Tamiya connector. A wider range of batteries can be used, such as crane stock batteries in the stock itself or Li-Po, which fit down the buffer tube. We recommend8.4v NiMh Crane Stock Battery or7.4V 1300mAh 15C LiPo Stick Battery

The tightbore barrel is a sweet addition in that it allows for greater accuracy and range, enabling you to hit those far-away targets than other M4s that lack this feature.

This is the perfect starter AEG 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 CM.518 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 heart's content going forward. A cheap and easy way to start playing, the CM.517 has something for every new player.

Features

• Unique-looking handguard and compensator
• Standard "milspec" lower receiver
• Textured pistol grip
• 21'' 20mm RIS / RAS Top rail
• Two side 3'' 20mm RIS / RAS rails
• Bottom 3'' 20mm RIS / RAS rails
• M-LOK slots at 3, 6, & 9 o'clock
• Unique front end compensator
• 14mm CCW threaded outer barrel
• Removable flip-up front and rear ironsights
• Mock bolt release
• Mock forward assist
• 300rnd high capacity magazine
• Adjustable radial Hop-up unit
• 380mm inner barrel
• Six-position adjustable crane stock
• Rear wired V2 alloy gearbox
• Rubber butt plate

Package Includes

• CM.518 M4 w/ Custom Muzzle Brake
  • 2 x 300rnd High-capacity magazine

Special Instructions

Please note that the Rear Sling Plate is made from plastic, and the rifle sling is basic and is for looks. Should you want to use the rear sling plate, it is suggested that you replace it with a Metal Version, such as the NUPROL M4 Sling Plate AEG, and a heavy-duty sling, such as the NUPROL One Point Bungee Sling. Should you need help fitting these parts, you can give us a call on 01484 644709.

The Rail Integrated Compensator is removable by first removing the screw on either side, and then pulling it off carefully by hand. This reveals a 14mm Counter Clockwise (CCW) Thread, which allows the attachment of Silencers, Suppressors and Tracer Units.

Specification

Specification

General

Platform Type	Assault Rifle
Over 18	Yes
Defence / UKARA Required	Yes, No,
Prebuilt	Yes
Included Items	Magazine Cleaning Rod Ironsight Set
Skill Level	Beginner Player
Warnings	Li-Po - Never Leave Charging UnattendedLi-Po - Only Use Approved ChargersLi-Po - Charge in a Fire Safe Area

Testing

FPS, using 0.20g BBs	Approx.330fps ± 10%, using 0.20g BBs

Weight and Dimension

Weight (KG)	Approx.1.8KG
Length	82cm
Length (Extended)	88cm

Construction

Primary Colour	Black, Tan,
Pre Two-Tone	No
Construction	Full Polymer reciver, pistol grip and stock

Weapon Specific

Powered By	Electric
Blowback Type	None
Platform	M4 / AR-15 / M16
Fire modes	Safe Semi Automatic Full Automatic
Safety Features	Trigger Lock
Shooter Configuration	Right Handed
Platform Configuration	Standard
Suggested BB Weight	0.2g

Hop-Up

HOP-Up Adjuster Type	Gear
HOP-Up Adjustment Location	Behind mock Bolt cover, when charging handle to the rear

Furniture

Furniture	MLOK Rail System Railed Receiver AR Buffer Tube Sliding Stock Flip-Up Ironsights Mock Jail Break Style Muzzle Device
Rail System	20mm RIS / RAS, MLOK Rail System,
Stock Type	Sliding
Stock Positions	5
Sight Type	Aperture Iron Sight
Sling Options	Stock, Loop,

Magazine Specific

Magazine Type	AEG
Magazine BB Capacity	Approx. 300 Rounds

Electric Gun Specific Information

Gearbox

Gearbox Version	V2 Gearbox
Gearbox Wiring	Rear Wired
Gearbox Quick Change Spring	No
Gearbox Electronic Trigger	No

Motor

Motor Type	Standard

Battery Specific

Battery Voltage	7.4V
Battery Connector	Mini Tamiya

Related video

Related video

Cyma CM.518 - Dark Earth - Airsoft Replica Unboxing Size guide

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.

This table should be used for reference, and cannot be used to check one weight against another, as the weight of the BB affects the power.

In order to check if the BB can be used with your replica chronograph using the weight you wish to use and then compare it against the table.

Every time you change weights you will need to re-chrono and check against the table. This is not a conversion chart between weights.

Joulage Limits by AEG

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

Joulage Limits by Semi-Automatic

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

Joulage Limits by Bolt Action

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

Buy together and save on these bundle deals