Rossi M4 Sentinel BETA 9″ (Black)
The Sentinel series from Rossi has seen considerable progress. Making the guns more affordable and available to more players is one potential benefit of switching to polymer construction, along with other advantages like lower weight, The internal component’s quality and durability have been maintained or improved upon.
Gearbox Ver.2
QC spring guide
Gear 18:1
Steel piston 14.5 teeth
ETU Ver.1
Mechanical trigger
8mm bearing bushing
ROSSI polymer body
Polymer handguard
Rossi Polymer Hi-Cap Magazine