Site Information



  • View all brands
 Loading... Please wait...
  • Image 1

Bulldog SR-4 R.I.S. M4 Carbine

Write Review
* i am over 18:

The sales of this item has been restricted to adults only. There is no minimum age requirement by law to use this item, however adult supervision is recommended at all times.

Current Stock:

Our Customers Rate Us

Questions? Call 0208 194 2000

One of our team will be happy to assist you! Lines open Mon to Sat 10am till 5pm

  • Description
  • Video Review
  • Warranty
  • Other Details
  • User Reviews
  • Delivery



- Full Upgrade Compatible SRC V2 Gearbox
- Reinforced SRC Gearbox shell and gears 
- Lightweight, yet Strong Polymer Body
- Removable Carry Handle (20mm R.I.S.)
- Fully Adjustable Hop-Up (Under the dust cover)
- Rear wired with a crane stock for easy swapping of the battery.
- Shop Tested @367 FPS average. (will need downgrading for most skirmish sites)


The M4 is a relatively modern rifle, with the current US Army version (the M4A1) being
introduced in 1994, It is a reliable and effective carbine that is IDEAL as a standard service
rifle as it is lightweight, accurate, and can be very quickly modified to suit any role on the
battlefield - The M4/16 platform can be used to make DMR's, Snipers, Rifles, Carbines.. etc.
The iconic shape of the M4 has become the symbol for the modern day assault rifle, it has
featured in almost every war game including the likes of Battlefield and Call Of Duty. It is
not only an immensely popular service weapon but also one of the bestselling sporting rifles
(The AR15 version) ever made.

Even with the plethora of different platforms available, the M4 remains one of the most popular
airsoft weapons produced with countless different variants being made by numerous different
companies - The internals are mostly standardised and parts are typically cross-compatible
between manufacturers, making it incredibly easy to make your own personal weapon based
on your own personal requirements.

Bulldog's M4 style line of rifles embody the concept of a low cost but high performance airsoft weapon.
Made from SRC parts the series boasts very good internal quality and combined with the polymer outer body makes for a fantastic starters rifle or backup.

Being a standard airsoft M4 the Bulldog M4 can be very easily configured to suit you as a player,
however – as this is beginner rifle the barrel is not removed in the same way it might be on a
more expensive, more realistic weapon; to simplify I have made a list of things you CAN do and
those you CANNOT;

Cant’s -
The barrel in this is a singular piece so changing it for a different “outer” will be very difficult,
inner barrels can be swapped as normal, but the outer section is all one piece.

Fake Gas Blocks – because of the above, the front sight is fixed to the barrel meaning you cannot
change it for a smooth style gas block.

Hand guard – the hand guard can be swapped for the standard M4 polymer hand guard but can't be fitted with any free floating rails that attach to the barrel link.
Can’s -
The pistol grip can be swapped out for almost any M4 compatible grip; generally anything that
will work on a combat machine will work on this with no trouble.

Stock – The stock can be changed for any airsoft M4 stock on the market provided it fits onto a
buffer tube; crane stocks, CTR stocks, anything of the like as long as it can fit the battery (It is located in the crane stock)

Rear Sight – The carry handle can be removed and replaced with any sight that fits a 20mm
rail, be aware you should try and line the dot of a red-dot with the front sight.

Magazines – This will be compatible with near all Mid-Caps, and High-Caps available for M4’s

Internals – The gearbox can be fully stripped and rebuilt with no problems, it uses a standard
V2 box so parts are incredibly easy to come by from almost any source.



Scale: 1:1
Magazine: Approximately 90 round Mid-cap magazine(Takes Most STANAG Mags)
Measured velocity:  Shop tested @ 367 FPS Average
Hop-Up: Fully Adjustable
Fire mode: AEG
Barrel type: Metal Standard Bore (~6.05)
Battery: Not included. Will need a nunchuck/crane style battery.
Weight: UNDER 3kg (Yet to be properly weighed)
Length: 770mm -> 860mm

Please note this gun does not come with battery and charger!

Sku :


Product Reviews

Write Review

  1. Load of? 1 Star Review

    Posted by Dave on 16th May 2024

    Absolutely crap, 99 per cent plastic, I could go on .
    Only redeeming feature is the gearbox, save your money and buy the D--BOYS at 79.95 it's a million times better. I should know I have 2 in my collection one of which is successfully running an 11.1v lipo with no problems

Delivery Prices start from just £2.50 with free delivery on orders over £75 To the uk mainland *.

Tip - The easiest way to check the shipping cost for what you want to buy is put all of the stuff you want in to your basket. Then in your basket under the sub total there is a link for Estimate Shipping & Tax” click this and fill in the details and it will tell you the shipping cost and if you qualify for free shipping



Free Shipping

Free shipping on orders over £75 To UK Mainland (excluding some parts of scotland) 

Free shipping on orders over £100 To Northern Ireland & the Republic of ireland, Scottish highlands & islands, and I.O.M

Sorry we do not offer free shipping to the Channel Islands


Free shipping is a 5 working day service* (if you order Monday you get it the next Monday)


Delivery price (Mainland UK) 

Royal Mail              (depending on weight)          (2 Days Delivery*From  £2.50 
Economy               (post as much as you want)  (2 to 4 Days Delivery*)   £4.95   Flat Rate
Express shipping  (post as much as you want)  (1 to 2 Days Delivery*)   £5.95  Flat Rate

*Working days (Saturday and Sunday are classed as non working days)

we can arrange a Saturday delivery on request but costs £20 and you will need to call us to pay the balance after making an order.  

Delivery price (Ireland, Scottish Highlands & Islands)

Northern Ireland           From £ 5.95
Highlands and islands  From £5.95
I.O.M                             From £5.95 

Republic of Ireland £6.95  (Flat Rate how ever big or small your order is)
Channel Islands £ 7.95 (Flat Rate how ever big or small your order is)

Delivery price (International Tracked)

(Flat Rate how ever big or small your order is)

Republic of Ireland (IRL)----  £6.95  Price Drop WAS £16

Belgium (BE)---------------  £7.95 Price Drop WAS £15

Netherlands (NL)----------  £6.95 Price Drop WAS £15

Germany (DE)--------------  £6.95 Price Drop WAS £25

Luxembourg (LUX)--------- £9.95 - NEW 

France (FR)-----------------    £9.95 Price Drop WAS £25

Austria (AT)----------------   £11.95 - NEW 

Greece (GR)----------------   £12.95 NEW

Sweden (SE)--------------    £14.95  NEW

Denmark (DK)------------    £9.95 Price Drop WAS £15

Finland (FI)---------------   £15.95 NEW

Italy (IT)------------------   £11.95 Price Drop WAS £16

Portugal (PT)-------------   £11.95 Price Drop WAS £18

Poland (PL)----------------- £9.95 - NEW

Spain (ES)-----------------  £12.95  Price Drop WAS £23

Sweden (SE)--------------   £11.95   Price Drop WAS £15

Slovakia (SK)-------------    £11.95 - NEW

Slovenia (SL) ------------    £11.95 - NEW

Croatia (HR)--------------   £16.95 - NEW

Czech Republic (CZ)-----  £10.95 - NEW

Hungary (HU)------------   £10.95 - NEW

Bulgaria (BG)------------   £14.95 - NEW

Romania (RO)------------  £13.95 - NEW

Switzerland (CH)--------- £12.95 - NEW

Turkey (TR)--------------- £17.95 NEW

Channel Islands ----------£ 7.95  Price Drop WAS £15


Related Products

talk about this product with your friends!

comment for a chance to win awsome airsoft prizes. You must leave also post on facebook checked for a chance to win!