Specna Arms M4 SA-B03

Overview:

This replica is based on the well-known M4 platform, recognized over time for its role in the U.S. military. This model features a medium barrel length, allowing for better range compared to CQB-oriented replicas. The rail systems it is equipped with allow for extensive accessorization.

Exterior of the Replica:

Impressive.... We can only praise the gentlemen at Specna Arms for the quality-to-price ratio they offer with their replicas. The exterior of the airsoft replica is well-made, and the materials used are of high quality. Aluminum and aluminum alloys are utilized, significantly reducing weight and greatly improving maneuverability. The design of the airsoft replica is both aesthetically pleasing and efficient. The front rail system has ample space for all kinds of accessories. A standard rail runs along the entire upper length of the replica, allowing for a wide range of sighting and other accessories to be mounted.

A large part of the replica is made of metal, with the ABS plastic elements being the grip and stock of the airsoft replica. The stock is adjustable with 6 positions and features a rubber pad for improved grip, and due to its considerable dimensions, crane batteries can be accommodated. The airsoft replica is equipped with a classic folding sight system, allowing for the use of other sighting devices. Note, to operate the sight system, the button on the left side must be pressed.

To add a touch of realism, the manufacturers have installed a system that mimics an active bolt catch, making hop-up adjustments much easier. The airsoft replica can be secured with a sling using the sling swivel positioned above the grip, with access to this attachment system available on both sides of the replica. Note, the included sling is not intended for supporting the airsoft replica.

Interior of the Replica:

The airsoft replica is equipped with a nearly standard version 2 gearbox, the only difference being the ability to replace the spring without opening the gearbox shell, but don’t get too excited, the gearbox still needs to be removed to perform this operation. Regarding the internals of the replica, we can say they are of good quality. The piston, its head, and the cylinder head are made of polycarbonate, while the gears are made of quality metal. The shimming of the airsoft replica is well done, and the sound of the functioning gearbox is good. The motor of the airsoft replica is standard but successfully engages the internal mechanism, with a consumption of only 10-11A, it can be said that it is a well-optimized gearbox. The performance is certainly aided by the gears equipped with 8mm bearings.

The hop-up chamber is metal, and the adjustment is located inside the ejection port. It can be accessed by operating the charging lever of the airsoft replica. The grouping is good even though the inner barrel has a diameter of 6.08 mm. When correctly adjusted, the hop-up allows the replica to achieve considerable engagement distances. The speed of the airsoft replica is approximately 115-120 meters per second measured with 0.20g BBs. The package also includes a spring rated for approximately 90-95 meters per second.

Power Supply:

The package includes a 9.6V 1100 mAh mini crane battery that mounts in the stock. It is recommended not to use batteries larger than 9.6V as the toy may malfunction. LiPo batteries can be used but not exceeding 7.4V. Only use quality BBs and do not reuse BBs as the airsoft replica may be damaged.