Specna Arms SA-B01 M4A1 Carbine Assault Rifle, Black

Specna Arms SA-B01 M4A1 Carbine Assault Rifle

Name: Specna Arms SA-B01 M4A1 Carbine Assault Rifle
Brand: Specna Arms
SKU: PR008785
Price: 227.49 EUR
Availability: InStock

Code: …

€227.49

Quantity

Adjustable Stock
Removable Carry Handle
Enter & Convert™ Spring System

Based off the standard M4A1 used by the US Army and Marines this rifle is a high quality replica built by Specna Arms with high levels of detail, finish, with a top quality wobble free design. If you're looking for a high quality full metal rifle for a beginner weapon you're going to be hard pressed to find anything else in this price range of this quality.

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 Standard

£6.95

From

UK 24hr Dispatch

£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

Built by Specna Arms to the highest quality these weapons are alloy in all the right places, with an alloy buffer tube, receiver, sling plate, outer barrel and carry handle, with a polymer stock, pistol grip and hand-guard. The weapon features various trademarks and stickers which all add to the weapon's realism, with a US Navy insignia on the magazine well.

The receiver features a top 20mm RIS / RAS rail which is revealed once the carry handle has been removed allowing the attachment of a wide variety of sights and scopes, and is the perfect home for a holographic or red-dot sight. The receiver also features a rear buffer tube sling plate which allows a variety of single point slings to be attached, and is made from metal to ensure that it is durable enough to take all the rough and tumble that comes along with a days skirmish.

The hand guard is based on the traditional standard hand-guard for an M4A1, and is designed to split just like the real thing, and is also where the batteries are stored inside the weapon. The hand-guard can also be replaced with other standard type M4 hand guard, and if the front post sight and d-ring are removed supports a wide range of aftermarket hand guard.

Internally the weapon contains everything you would expect from a modern Airsoft replica and more, with Silver wiring for low resistance, a v2 front wired gearbox with quick change spring system, 8mm ball bearings and is compatible with most Ni-mh, LiPo and LiFe batteries. We recommend a 7.4v LiPo stick or crane stock Tamiya battery. The weapon also features an adjustable hop-up system which is designed to add spin to the BB to add range and accuracy, and is fully adjustable to allow support for a wide range of BB weights.

This rifle is perfect for those Airsoft players who are looking for a traditional looking M4, but with plenty of strength and durability. This rifle is a perfect beginner weapon because not only is it excellent quality, but leaves plenty of room for external upgrades, with plenty of options for compatibility with aftermarket parts.

Features

Built by Specna Arms
Based off the standard M4A1 used by the US Army
Electric powered Airsoft AEG
7.4v LiPo stick / crane stock Tamiya recommended
Removable carry handle to reveal a top 20mm RIS / RAS rail for sights and scopes
14mm CCW threaded outer barrel for attaching Suppressors and Tracer Units
Rear QD sling loop mount point
Front bayonet lug
Front and rear sling loops
D-Ring held removable handguard
Adjustable Hop-Up unit for range and accuracy
Metal high capacity Hi-Cap wheel wound 300rnd Magazine
Adjustable Crane Style Stock
Enter & Convert™ quick change spring system
Compatible with Ni-Mh, LiPo, and LiFe batteries
Batteries stored in the handguard
Front wired Gearbox System
Silver wiring for minimal resistance
8mm Ball Bearings with steel thread-wheels
Type 2 cylinder
Metal hop-up unit
Mock charging handle
Finger ridged pistol grip ergonomic design
Compatible with a wide range of Airsoft STANAG Magazine
Well weight balanced
RoHS Compliant
Wobble free, heavy duty construction
Branded:
- 'MARINE ENV.M-4'
- '5.56MM NATO'
- 'S044053'
- SPECNA ARMS INDUSTRIES'
- 'CAGE: 68407'
- 'PART# 49672380'
- 'SERIAL# SA2689'

Package Includes

SA-B01 M4A1 Carbine Assault Rifle
Magazine
Iron Sight Carry Handle

Recommended Battery

For this rifle we recommend a 7.4v LiPo with Tamiya connector in stick or crane stock configuration.

Special Instructions

The externals of the replica are metal where they would be on the real world gun. This includes things like the outer barrel, handguard, and receiver. If a real world gun has polymer parts then the gun will still be marked as full metal externals, examples of this would be an M4, where the Stock and Pistol grip are always made from Polymer.

Specification

General

Weapon Type	Assault Rifle
Over 18	Yes
Defence / UKARA Required	Yes, No,
FPS (Feet Per Second), using 0.20g BB	Approx. 310fps ± 10%, using 0.20g BB
Site Legal, using 0.20g BB	Yes
Pre-Built	Yes
Included Items	Magazine Iron Sight
User Skill Level	Starter, Regular Player,
Warnings	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)	Approx. 2.58kg
Length (Collapsed)	80cm
Length (Extended)	88cm

Construction

Primary Colour	Black, Half-Tan,
Pre Two-Toned	No
Construction	Alloy
External Construction	Polymer Alloy
Internal Construction	Polymer Alloy

Weapon Specific

Powered By	Electric
Blowback	None
Weapon Platform	M4 / AR-15 / M16
Magazine Style	STANAG
Fire Selector	Safe Semi Automatic Full Automatic
Safety Features	Trigger Lock
Shooter Configuration	Right Handed
Weapon Configuration	Standard
Weapon Scale	1:1
Suggested BB Weight	0.25g

Hop-Up

Hop-Up Unit	Yes
Hop-Up Adjuster	Gear
Hop-Up Location	Adjustable behind dust cover

Furniture

Furniture	Finger Ridged Pistol Grip
Rail System	20mm RIS / RAS
Stock Setting	Multi-Position
Sight Type	Aperture Iron Sight
Sling Options	Loop

Barrel

Outer Barrel Thread Type	Male
Outer Barrel Thread Direction	CCW (Counter Clockwise)
Outer Barrel Thread Size	14mm

Magazine Specific

Magazine Type	High Capacity, Wheel Wound, AEG,
Magazine BB Capacity	Approx. 300 Rounds
Magazine BB Fill Method	Fill Window
Magazine BB Fill Location	Top

Electric Gun Specific Information

Gearbox

Gearbox Version	V2 Gearbox
Gearbox Wiring	Front Wired
Gearbox Quick Change Spring	Yes
Gearbox Electronic Trigger	No
Split Gearbox Design	No

Motor

Motor Type	Standard

Battery Specific

Battery Connector	Mini Tamiya

Compatible Battery

Compatible Battery Type	Li-Po
Compatible Battery Configuration	Crane
Compatible Battery Voltage	7.4v

Product Testing Data

Test Description	Using 0.20g BB

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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