"Custom" Specna Arms HPA M4 Bronze Build

For sale is my custom-built HPA M4, featuring a 13.5" M-LOK handguard and outer barrel setup. The rifle was built with a strong focus on both performance and aesthetics and has a very unique appearance that stands out from typical M4 builds.

The lower receiver originally comes from a Saigo Defence rifle. I specifically chose to use it because its color matched extremely well with the bronze Specna Arms upper receiver and handguard that were selected for this project. The rifle is not simply a mix of two old guns thrown together. Instead, it was intentionally built from the ground up around a custom color concept, with only the lower receiver being reused from a previous platform. To complete the look, the stock has been modified with paracord wrapping, matching the grip and giving the rifle a distinctive and cohesive appearance.

Despite the mixed reputation of the H.E.P. system, this particular engine has performed extremely well for me. During the past year of use, I experienced virtually no issues. The system runs reliably and consistently and offers excellent trigger response. Using 0.32 g to 0.36 g BBs, the rifle is capable of accurate shots out to approximately 70–80 meters, depending on Joule and wind conditions.

The rifle is being sold because I am downsizing my collection and focusing on other projects.

If you have any questions or would like additional photos or infos, feel free to contact me.

The rifle is sold as pictured + 2 Mags, with the exception of Eotec 

Internal Upgrades