Patent ID: 8424441

Claim:
A booster system for a firearm suppressor comprising: a piston housing including an annular outer wall and an annular projection extending radially inward from the outer wall at a rear end of the piston housing, the annular projection forming a front-facing shoulder; a piston disposed within the piston housing and including a bore for the passing of a projectile from a firearm and a radially outwardly extending flange at a front end thereof, the flange forming a rear-facing shoulder; a spring radially disposed in an annular space between the piston housing and the piston, the spring engaging the front-facing and rear-facing shoulders; and a rear cap including: an end wall extending radially outward from a rear end of the piston housing, and an annular side wall extending forward from the end wall over the outer wall of the piston housing and at a radial distance from the outer wall of the piston housing, the sidewall including an engagement surface configured for attachment to a body of the suppressor.