WYSHTECH Airsoft show the upgrades they did the BOLT Airsoft M16A4 BRSS... "In this video, I review and upgrade the BOLT M16A4 B.R.S.S. HEAVY Recoil AEG, focusing on improving its performance while keeping the signature recoil system fully intact. From externals to chrono testing, internal teardown, and a full upgrade plan—this build covers it all.

Whether you're curious about BOLT’s recoil platform or planning your own upgraded AEG, this video dives into everything you need to know."