Specna Arms Airsoft M4 SD SA-C11 CORE Carbine – Half-Tan

Original price was: £149.95.Current price is: £109.95.



Specna Arms has produced again another in the CORE™ line of products – an exceptional series of airsoft replicas that introduces a new quality to the airsoft market.
The receiver, stock slide, handguard and a SF stock that holds the battery, as well as the pistol grip, were made from fiber-glass reinforced polymer. Remaining components such as the barrel, flash hider, enlarged charging handle and tactical sling swivels were made of metal (parts made of steel include the screws, pins, shell ejection window and mock bolt carrier). The receiver bears markings and a serial number.

This airsoft M4 SD fits very well together and the User will not experience any loose spots between the lower and upper receiver. The use of a light polymer receiver allowed for a reduced weight, which makes it very suitable for dynamic games or long-lasting mil-sims. What’s more, fiberglass reinforcement makes the receiver also more durable than polymer and metal receivers.

The replica features a ESA™ Quick Spring Change System. Due to that system, it is possible to rapidly and quickly adapt the power of the airsoft rifle to the conditions expected on the playing field without the necessity to have the access to a workshop or a set of special tools – all that is required is to remove the stock slide in order to gain access to the spring so that it can be removed without having to pull out or disassemble the gearbox.

The gearbox contains 8 mm slide bearings as well as shimmed steel gears based on them. The system is secured with four anti-reversal latches. A light, made of a polycarbonate polymer piston is equipped with a full steel strip, in order to increase its durability. Also, implemented were a type 2 cylinder and a steel circuit-breaker, as well as a precise rotary Hop-Up chamber.

The precisely-made rotary type Hop-Up chamber perfectly fit with high quality 6,03 precision barrel. The use of precision barrel has a positive effect on the range and accuracy of the replica.

The replica is equipped with a 22 mm top RIS rail and an adjustable stock. The top RIS rail features a classic transport handle along with a rear sight. Due to the extendable stock with an anti-slip stock pad, it is possible to adapt the replica’s length to the body type and preferences of the User. A standard flash hider is based on 14 mm left-handed thread, which allows the attachment of a silencer in its place.

  • 20mm Rail System
  • Flip-up sights.
  • 14mm CCW thread
  • ESA ™ quick spring change system.
  • 8mm plain bearings.
  • Steel gears.
  • Polycarbonate plastic piston with a full steel jaw.
  • Rotary hop up chamber.
  • 6.03mm Precision Barrel.

Additional information

Weight4 kg
Gun Variant / Type

M16 & M4 Variants

Fire modes

Safe + Semi Auto + Full Auto


340 +/- 5%

Hop Up



690mm – 770mm



Main Construction

Polymer + Metal

RIS System

20mm Rail System


Flip Up Adjustable



Power source

7.4v Stock Tube Lipo (Not Supplied)

Power source Location


Inner Barrel




Stock Type


Accessories included


 If you have any questions about this product, please let us know and we'll get back to you as soon as we can.