A set of two caps made with the use of precise CNC machine. Once installed on the spring guide, the cap causes the reversal of the main spring, thus allowing for achievement of greater power. A solution dedicated for Dual Sector Gear systems.
TUNE UP KIT MADE OF ERGAL FOR M4/M16 (KITM4E3)
TUNE UP KIT MADE OF ERGAL FOR AK 47/74 INNER BARREL FROM 451 TO 550mm (KAFE1)
TUNE UP KIT MADE OF ERGAL FOR M4/M16 INNER BARREL FROM 451 TO 550mm (KMFP1)
CYLINDER HEAD FOR VERSION 2 GEARBOX MADE OF ERGAL (TC02E)