No products
Northeast STEN MK.5 GBB SMG (v2026) is a highly realistic airsoft replica of the legendary British submachine gun, featuring a steel construction with genuine beech wood furniture. It offers an authentic gas blowback system, Semi and Full Auto firing modes, an adjustable hop-up, and compatibility with both Green Gas and CO2. The 2026 version introduces reinforced and upgraded internals.

For more than 25 years, we know what you like about airsoft.
: ASG
UAIR-POW-1
ASG ULTRAIR Green Power Gas (135 PSI) by ASG in a 570 ml canister. Without Silicone. High-quality Green Gas for reliable performance across a wide temperature range. Ideal for use in spring, summer, and autumn. Suitable for GBB and GNB gas airsoft pistols and rifles with blowback (GBBR).
: BLS
1KG-H32
BLS PRECISION Airsoft Pellets weighing 0.32 g in a pure white finish. 1 kg package (resealable bag, 3120 BBs). The most popular ammunition for all airsoft guns (rifles, sniper rifles, LMGs, SMGs, shotguns, and pistols). Suitable for AEG, HPA, gas guns, and spring-powered replicas. The world’s best-selling BBs. Hand-measured quality control. BLS –...
: BLS
1KG-H28
BLS PRECISION Airsoft Pellets weighing 0.28 g in a pure white finish. 1 kg package (resealable bag, 3500 BBs). The most popular ammunition for all airsoft guns (rifles, sniper rifles, LMGs, SMGs, shotguns, and pistols). Suitable for AEG, HPA, gas guns, and spring-powered replicas. The world’s best-selling BBs. Hand-measured quality control. BLS –...
: BLS
1KG-H30
BLS PRECISION Airsoft Pellets weighing 0.30 g in a pure white finish. 1 kg package (resealable bag, 3300 BBs). The most popular ammunition for all airsoft guns (rifles, sniper rifles, LMGs, SMGs, shotguns, and pistols). Suitable for AEG, HPA, gas guns, and spring-powered replicas. The world’s best-selling BBs. Hand-measured quality control. BLS –...
: NUPROL
NUP20-GRN
Premium Green Gas 2.0 (145 PSI) by NUPROL in a 650 ml bottle. Silicone-infused version for seal maintenance. Prevents corrosion of internal components. High-quality Green Gas ensures reliable performance in varying temperatures (10–25 °C). Ideal for use in spring, summer, and autumn. Compatible with GBB and GNB gas airsoft pistols and blowback rifles...
: NUPROL
NUP20-MINI
Premium Green Gas 2.0 Mini (145 PSI) airsoft gas by NUPROL. Compact 380ml bottle for easy carry. Silicone-infused formula for seal maintenance. Protects internal parts from corrosion. High-quality Green Gas for reliable performance across varied temperatures (10 - 25 °C). Ideal for use in spring, summer, and autumn. Suitable for GBB and GNB pistols,...
NORTH006
Northeast Green Gas magazine for STEN GBB airsoft SMGs offers a capacity of 32 BBs and stable performance even in colder weather. Designed for Northeast STEN MK.2 and MK.5 GBB submachine guns, it runs on standard Green Gas. Interestingly, it delivers a higher muzzle velocity than the CO₂ version. The durable steel magazine body will appeal to collectors...
: Nimrod
NIM-GRN
Great allround gas for spring, summer and autumn use, suitable for a wide range of airsoft pistols and rifles. Not suitable for cold winter temperatures, Japanese made pistols and rifles. Features a very stable gas pressure, exceptional trajectory control, low temperature efficiency and increases the performance of your gun significantly.
4UAD006
4UANTUM SEAL Silicone Grease for Sealing by 4UAD in a transparent finish. High-viscosity sealing grease. Ideal for sealing repairs and preventing leaks from damaged O-rings. Suitable for electric AEGs, manual, GBB, CO2, and HPA gas guns. Content: 15 ml. Easy application with a pen applicator.
4UAD007
4UANTUM SPEED Oil for moving metal parts by 4UAD in orange oil color. Special oil for minimizing friction between metal parts of airsoft guns. Ideal for gear axles in electric AEG weapons. Also suitable for moving parts of GBB gas guns, such as hammers, slides, etc. Precision application thanks to an integrated nozzle.
NORTH028
Northeast CO2 magazine for the STEN GBB submachine gun offers a 32 BB capacity and stable performance even in cold weather. Designed for the Northeast STEN MK.2 and MK.5 GBB, it uses a standard 12 g CO2 cartridge. Compared to the Green Gas version, it reduces muzzle velocity by approximately 10 m/s (40 FPS), making it easier to meet CQB field limits while...
The Northeast STEN MK.5 GBB is a detailed gas-powered replica of one of the most iconic British firearms of World War II, combining a robust steel receiver, genuine beech wood furniture, and a realistic gas blowback system. The Mk.5 version is based on the refined STEN variant introduced in 1944, featuring a wooden stock, pistol grip, vertical front grip, bayonet lug, and a front sight inspired by the Lee-Enfield No.4 rifle. Northeast has focused heavily on authenticity, equipping the replica with a steel construction finished in Bluing, a brass buttplate, and historically accurate factory markings. Its 3.92 kg weight further enhances the realistic handling experience. The gas-powered operating system features a moving bolt with GBB blowback and both Semi and Full Auto firing modes, while the shortened bolt travel improves gas efficiency. The latest 2026 version builds upon previous upgrades by adding a reinforced nozzle, a wider BB feeding section beneath the nozzle tip for improved durability, the latest hop-up bucking, and a revised valve knocker base. It also retains the updated hop-up chamber for improved bucking alignment. One of the biggest advantages of the new configuration is its factory compatibility with both Green Gas and CO2 magazines without additional modifications, allowing you to choose the most suitable power source depending on weather conditions and performance requirements.
Yes. The current 2026 version is factory-ready for both Green Gas and CO2 operation. Simply use the appropriate magazine for your chosen power source. The CO2 version offers more consistent cold-weather performance and, thanks to its built-in limiter, delivers approximately 10 m/s lower muzzle velocity, helping it comply with CQB field limits.
Yes. The stock, pistol grip, and front grip are made from genuine beech wood. Combined with the predominantly steel construction, Bluing finish, and brass buttplate, they provide an exceptionally authentic look and feel.
The real STEN Mk.5 was introduced as a more refined and ergonomic version of the original STEN. Compared to the utilitarian Mk.2, it features a wooden stock, pistol grip, front grip, improved sights, and several other design refinements. The Northeast airsoft replica faithfully reproduces these distinctive Mk.5 characteristics.
| Variants | MK.5 |
| Color | Wooden |
| Muzzle velocity (m/s) | 110 (m/s) |
| Recommended weight of ammunition | 0,28g - 0,32g |
| Length | 760 (mm) |
| Inner barrel length (mm) | 180 (mm) |
| Weight (g) | 3920 (g) |
| Body/receiver material | Metal / Wood |
| Mounting System | None |
| Nozzle | Plastic |
| Hop-Up chamber material | Metal |
| Magazine material | Metal |
| High-cap / Mid-cap | Mid-cap |
| Magazine capacity | 32 |
| Blowback | YES |
| Weapon accessories | Yes |