so it wont slow down the recoil action

Weight: 2140g

the T-REX 9 is backwards compatible with all previous Classic Army Nemesis series AEG upper receivers

Piston Head:Ported and Bearing

Height: 6"

SS Airsoft Custom Hi-Capa 5.1 - Dragon Tooth AEG Piston Head so it wont slow downAnother hand build custom 5. 1 Hi Capa build. A sweet addition to the family. Get your one of a kind build today!! DragonTooth Includes: Tokyo Marui Gold match Base Airsoft masterpiece limcat Speedcat slide Tornado 5. 1 outer barrel LA Capa Guide plug AIP 120% recoil spring AIP 120% nozzle spring LA Capa magwell Laylax scope mount CowCow charging handle