Max Power Kit For AEA Challenger Bigbore(Only For Bigbore)
It can be installed both on Long Stock and Bullpup
 
This is specail Max Valve kit system for AEA Bigbore Challenger Airguns, It will maximize the power output on Challenger Bigbore alomost 80% up
Before Installation:
 .357CAL 140 GRAINS1000 FPS 10+ GOOD SHOTS 300 FPE UP
.457CAL 300 FPE UP235 GRAINS 850 FPS 6+ GOOD SHOTS 400 FPE UP
.50CAL 235 GRAINS 850 FPS 6+ GOOD SHOTS 400 FPE UP
 After Installation:
 .357CAL 140 GRAINS 6+ GOOD SHOTS 350 FPE UP
.457CAL 300 GRAINS 4+ GOOD SHOTS 630 FPE UP
.50CAL 300 GRAINS 4+ GOOD SHOTS 680 FPE UP
.510CAL 300 GRAINS 4+ GOOD SHOTS 700 FPE UP