RA-Tech follow through with their initial M4 GBB product with another M4 Gas Blowback Rifle which is kitted with the standard M4 handguard rather than a rail system... "RA TECH debut the standard M4. Still the forging upper and lower receiver, but with the plastic hand guard. As for the upgrade parts, it uses the standard recoil buffer and trigger set. Steel bolt without NPAS. But still with RA TECH hop up set and precision inner barrel.

The fps test is 380, and ROF is 9.43.