Gas and still-burning powder exit the barrel through the port hole as the bullet passes which cycles the weapon. This action starts to occur while the bullet is still in the barrel causing pressure loss and inconsistencies which result in decreased accuracy relative to a bolt action.
Post-Barrell Cycling Plenum
Eliminates the barrel port hole allowing the bullet to exit the barrel prior to the bolt opening. The automatic rifle now produces increased and consistent velocities like a bolt action. A switchable gas block allows the shooter to open the port hole and remove the post barrel system if desired.
Allows semi-automatic rifles to shoot as accurately as a bolt-action rifles by eliminating the need for a gas port inside the barrel
Greatly Reduces velocity variations
Increases velocity
Increases long range accuracy
Reduces action fowling
Switchable gas block available
Lower Recoil Impulse Due to Slower Bolt Travel
Reduced pressure allows for match chambers
No hand-guard heating during high rates of fire
acts as a flash hinder
slower bolt cyclic rate
eliminates pressure and accuracy issues in large size ARs