Airsoft Assault Rifle Replica Sports Line ETU - M4 SOPMOD Block 3 11.5 - S&T

The M4 SOPMOD Block 3 11.5” replica from the Sports Line series, produced by the renowned manufacturer S&T Armament, is a solid, compact, and reliable M4 replica available at an affordable price. Designed for dynamic CQB gameplay, it offers excellent maneuverability in tight spaces while also performing well in open-field scenarios. The design is based on the classic AR15/M4 configuration, widely known from films, video games, and used by elite military units such as DEVGRU and the Green Berets.

Reinforced nylon body with M-LOK mounting system

The replica’s body is made of durable nylon, more resistant to damage than brittle ABS, while providing a realistic matte finish. To increase durability, components such as the trigger, trigger guard, charging handle, QD mounts, and outer barrel are made of metal, significantly improving structural strength. The replica features a full 22 mm Picatinny rail and a modern M-LOK mounting system, allowing easy installation of accessories such as foregrips, flashlights, or red dot sights. All components are very well fitted.

Compact dimensions and CQB-oriented ergonomics

The M4 Block 3 has a length of 73.5 cm, placing it within the optimal 65–75 cm range, ideal for tight indoor environments. The replica weighs 2.3 kg, providing good stability while maintaining high maneuverability. The SF-style stock offers 6-position adjustment and space for a LiPo battery, allowing adaptation to the user’s body and improving comfort during use.

Efficient ETU unit and reinforced gearbox – reliability and speed

Inside is a reinforced V2 gearbox with 18:1 steel gears and a modern ETU (Electronic Trigger Unit) system, improving trigger response and protecting the electrical system. Compatible with 11.1V LiPo batteries, it delivers approximately 20 RPS. The quick spring change system allows easy power adjustment, and available spare parts make maintenance and tuning straightforward.

Consistent performance and good accuracy

The replica achieves a muzzle velocity of 390–400 FPS (with optional lower power versions available) and produces around 20 RPS on an 11.1V battery, comparable to mid-range replicas and clearly outperforming budget models (11–13 RPS). Effective range reaches up to 60 meters. Accuracy is ensured by a rotary hop-up chamber, allowing precise and quick adjustments. Inside, a TM-standard bucking is installed for easy servicing and replacement.

Battery-compatible stock and mid-cap magazine

The SF stock supports batteries up to 3000 mAh, extending operating time. The package includes a 150-round mid-cap magazine, ensuring reliable BB feeding without rattling. The replica is compatible with magazines from other manufacturers (e.g., CYMA, A&K, Double Eagle), making upgrades easier. Battery and charger are not included.

Over 20 years of S&T experience and thousands of satisfied users

S&T Armament has over 20 years of experience and has been available in the Taiwangun store since 2021. Over 10,000 units have been sold in the Sports Line series alone, and the new AK Sports Line, launched in 2024, has sold several thousand units with an average rating of 4.5/5 stars. S&T replicas are valued for durability, functionality, and excellent price-to-performance ratio.

Excellent value – ideal for beginners

The M4 SOPMOD Block 3 11.5" Sports Line ETU is a lightweight, compact, and reliable AEG with good accuracy and range. Its classic AR15/M4 design, inspired by DEVGRU and Green Berets setups, performs well in dynamic gameplay. It is ideal for beginner and intermediate players looking for quality equipment.

Package includes:

• M4 SOPMOD Block 3 11.5" AEG replica
• 150-round mid-cap magazine
• Full Picatinny rails
• Flip-up iron sights.