Silencer and mounting system

1. A booster for a silencer for use with a firearm, comprising:

a piston having a proximal end configured to couple to the firearm, a distal end comprising a plurality of spokes arranged thereabout; and

a housing configured to be at least partially received within the silencer and configured to couple to the silencer, the housing comprising an eccentric bore in which the piston is received, and a plurality of holes such that expanding gases produced upon discharge of the firearm can escape the housing in a direction substantially transverse to the path of a projectile passing through the piston and housing;

wherein the piston is translatable relative to the housing during discharge of the firearm coupled to the piston, and

wherein the housing is disengageable from the piston and is adjustable with respect to the piston to align the silencer below a sight plane of the firearm.

2. The booster of claim 1 , wherein the housing comprises an internal shoulder having a plurality of spaced notches configured to receive and engage the spokes formed about the distal end of the piston, wherein the engagement of the notches and the spokes is configured to prevent the housing from rotating relative to the piston.

3. The booster of claim 2 , wherein the internal shoulder prevents rotation of the housing relative to the piston; and when the booster is coupled to a silencer and a firearm, the silencer is prevented from rotating relative to the firearm.

4. The booster of claim 2 , wherein the plurality of notches comprises ten or more notches, and the plurality of spokes comprises ten or more spokes.

5. The booster of claim 2 , wherein the piston flange has approximately twenty to thirty spokes and the internal shoulder has twenty to thirty notches.

6. The booster of claim 1 , the booster further comprising a rear cap configured to couple to the housing, the rear cap comprising at least one recess at a proximal end of the rear cap, the at least one recess configured to facilitate removal of the rear cap.

7. The booster of claim 1 , wherein the eccentric bore has first portion in a distal end of the housing having a first diameter, and a second portion in a proximal end of the housing having a second diameter; the first diameter is smaller than the second diameter.

8. The booster of claim 7 , wherein the distal end of the housing comprises a stop against which forward movement of the piston is arrested.

9. The booster of claim 1 , wherein the housing comprises a base portion and a distal portion extending forwardly of the base portion, and wherein the eccentric bore is offset with respect to the base portion, and is substantially coaxial with respect to the distal portion.

10. The booster of claim 1 , wherein the eccentric bore of the housing of the booster is configured to be substantially coaxial with an eccentric bore defined through at least one baffle of a body of the silencer.

11. The booster of claim 10 , wherein an aligning projection is at least partially defined by the housing of the booster, and an aligning receptacle is at least partially defined by the at least one baffle of the body of the silencer, the aligning projection configured to be received and extend into the aligning receptacle to restrict relative rotation between the at least one baffle and the housing of the booster.

12. A silencer for a firearm, comprising:

an elongate body including opposite proximal and distal ends with a bore extending along a longitudinal axis of the body between the proximal and distal ends thereof;

at least one baffle positioned along the bore of the body, the baffle having an eccentric bore formed therein and located in an alignment offset from the longitudinal axis of the body;

a booster comprising a housing and a piston, the housing received within the bore of the body and releasably coupled to the body, and comprising an eccentric bore that is substantially coaxial with the eccentric bore of the at least one baffle, wherein the piston is configured to couple to a firearm so that a projectile from the firearm can pass through the piston, the housing, the body and the at least one baffle, the piston extending into the eccentric bore of the housing and being movable relative to the housing between a first position wherein a series of locking elements of the housing and the piston cooperatively engage so as to substantially prevent rotation therebetween, and a second position wherein the mating elements are disengaged to allow relative rotation between the body and the piston; and

a series of mating elements defined between the at least one baffle and the silencer body are configured to restrict relative rotation between the at least one baffle and the body to substantially retain coaxial alignment between the eccentric bores during relative rotation between the body and the piston.

13. The silencer of claim 12 , wherein:

the housing comprises a plurality of holes such that expanding gases produced from a discharged firearm coupled to the piston can escape the housing in a direction substantially transverse to the path of a discharged projectile, and

the eccentric bores are configured to align the silencer below a sight plane of a firearm coupled to the piston.

14. The silencer of claim 12 , wherein the locking elements comprise:

a plurality of spokes defined about a distal end of the piston; and

a plurality of notches configured to receive the plurality of spokes defined adjacent the proximal end of the housing.

15. The silencer of claim 12 , wherein the at least one baffle is part of a baffle core positioned in the body, and the mated elements comprise:

an aligning projection of one of the baffle core and the housing; and

an aligning receptacle at least partially defined by the other of the baffle core and the housing, the aligning projection extending into the aligning receptacle.