Classic Army M15A4 RIS AEG

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£119.99

Quantity

High-strength polymer receiver
6.03mm Tightbore inner barrel
Inline MOSFET preinstalled

If you're new to Airsoft and want a reliable AR-style platform from a proven manufacturer, the Classic Army M15A4 RIS AEG is a solid place to start. Designed as an entry-level carbine, this rifle combines Classic Army’s respected internals with a lightweight yet durable nylon fibre construction, resulting in a cost-effective platform that performs well straight out of the box.

Inspired by the widely used AR-15 and M15A4 platforms, the M15A4 RIS delivers familiar ergonomics, excellent modularity and dependable performance. With its quad rail handguard, high-capacity magazine and LiPo-ready electronics, this rifle is ideal for players who want to mount accessories and stay competitive without immediately upgrading.

Full description

Delivery & Returns

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.

Description

The Classic Army M15A4 RIS AEG is a premium Airsoft replica built for consistency and adaptability. The receiver is constructed from high-strength nylon fibre reinforced polymer, keeping weight down while maintaining excellent durability for regular skirmish use. This makes the M15A4 RIS particularly well-suited to players who prefer a lighter rifle without sacrificing reliability.

Internally, the rifle features a full metal Version 2 gearbox running on 9mm bushings, providing a robust and upgrade-friendly foundation. An inline MOSFET protects the trigger contacts and improves electrical efficiency, while also making the rifle LiPo-ready straight out of the box. The inclusion of a 6.03mm tightbore inner barrel helps maximise accuracy and consistency, giving the M15A4 RIS performance that punches above its entry-level price point.

The quick-change spring system allows users to easily adjust the rifle’s power output without disassembling the gearbox, making it simple to tailor the rifle to different site limits. Out of the box, the M15A4 RIS Nylon Fibre fires at approximately 330–350 FPS using 0.20g BBs, making it suitable for both CQB and outdoor skirmishing.

Starting at the front, the rifle is fitted with a metal outer barrel featuring 14mm negative threading, allowing the attachment of tracer units, suppressors or alternative muzzle devices. Surrounding the barrel is a metal RIS quad rail handguard with 20mm Picatinny rails at the 3, 6, 9 and 12 o’clock positions, providing ample space for mounting torches, lasers, grips or other mission-essential accessories.

Moving rearward, the upper receiver features a full-length 20mm Picatinny top rail, supplied with a detachable carry handle for classic M4 styling. Removing the carry handle allows for the mounting of red dot sights, holographic optics or scopes, depending on your preferred setup.

At the rear of the rifle, the M15A4 RIS is equipped with a nylon fibre crane stock mounted to a 6-position buffer tube, allowing the length of pull to be adjusted to suit different body types and shooting stances. The crane stock also provides space for butterfly-style batteries, keeping the wiring protected and neatly housed. The matching nylon fibre pistol grip offers a comfortable and secure hold during extended use.

The adjustable HOP-up unit allows fine-tuning of BB backspin, helping you achieve the flattest possible trajectory with your chosen ammunition. Combined with the tightbore inner barrel and stable gearbox, this gives the M15A4 RIS consistent accuracy and effective range for both indoor and outdoor environments.

Supplied with a 300-round high-capacity magazine, the Classic Army M15A4 RIS Nylon Fibre AEG keeps you shooting longer between reloads and is compatible with a wide range of M4 and M16 series Airsoft AEG magazines.

Whether you are a beginner looking for a dependable first rifle or a more experienced player seeking a lightweight, upgrade-friendly AR platform, the Classic Army M15A4 RIS Nylon Fibre AEG delivers proven performance from a trusted manufacturer.

Features

6.03mm Tightbore inner barrel – Improved accuracy and consistency
Metal RIS quad rail handguard – 20mm Picatinny rails at 3, 6, 9 and 12 o’clock
High-strength nylon fibre receiver – Lightweight and durable
Full metal Version 2 gearbox – Fully upgradeable
9mm bushing gearbox – Strong and stable internal platform
Inline MOSFET – Protects trigger contacts and improves efficiency
Quick-change spring system – Easy power adjustment
Metal outer barrel – 14mm negative threading for tracers or suppressors
Detachable carry handle – Classic styling or optic-ready
Adjustable HOP-up unit – Tune for different BB weights
Nylon fibre crane stock – Battery storage and adjustable length of pull
Compatible with M4 / M16 series AEG magazines

Package Includes

Classic Army M15A4 RIS AEG
300rd High-capacity magazine
Vertical foregrip
Rail covers

Specification

General

Over 18	Yes
Defence / UKARA Required	Yes, No,
Prebuilt	Yes
Included Items	Magazine
Skill Level	Beginner Player
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, using 0.20g BBs	Approx.330fps ± 10%, using 0.20g BBs
Testing Notes	Manufacturer FPS Estimate using 0.20g BBs

Weight and Dimension

Weight (KG)	Approx.2.7KG
Length	76cm
Length (Extended)	84cm

Construction

Primary Colour	Black
Construction	Polymer receiver, grip and stock. Metal handguard, outer barrel and trims.

Weapon Specific

Powered By	Electric
Platform	Assault Rifle
Fire modes	Safe Semi Automatic Full Automatic
Safety Features	Trigger Lock
Shooter Configuration	Right Handed
Platform Configuration	Standard
Platform Scale	1:1
Suggested BB Weight	0.25g

Hop-Up

HOP-Up Adjuster Type	Rotary
HOP-Up Adjustment Location	Accessible through the mock bolt carrier with the charging handle pulled and held to the rear.

Furniture

Furniture	Railed Handguard Railed Receiver Ergonomic Pistol Grip AR Buffer Tube Sliding Stock Flip-Up Ironsights Flash Hider Bird Cage Flash Hider Threaded Outer Barrel QD Sling Point Ambidextrous Sling Plate Enlarged Trigger Guard sling points front and rear AR Triangle front sight with sling loop
Rail System	20mm RIS / RAS, 20mm Railed Receiver,
Stock Type	Sliding, Multi-Position,
Stock Positions	6
Sight Type	Iron Sights, Aperture Iron Sight,
Sling Options	Buffer Plate, Stock, QD, Loop, Gas Block,

Barrel

Outer Barrel Length (in)	10.5''
Outer Barrel Thread Type	Male
Outer Barrel Thread Direction	CCW (Counter Clockwise)
Outer Barrel Thread Size	14mm
Inner Barrel Diameter	6.03mm
Inner Barrel Length	260mm

Magazine Specific

Magazine Type	AEG, High Capacity,
Magazine BB Capacity	Approx. 300 Rounds

Electric Gun Specific Information

Gearbox

Gearbox Version	V2 Gearbox
Gearbox Wiring	Rear Wired

Battery Specific

Battery Voltage	7.4V
Battery Type	Li-Po
Battery Connector	Mini Tamiya

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.

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

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