Firearm Receiver Having an Integral Suppressor Assembly

Abstract

An integral suppressor assembly including a trunnion integrally extending from the front of the upper receiver, a tubular hand guard mounted to the trunnion, and a suppressor baffle mounted to the rifle barrel within the hand guard. The trunnion provides a structural interface for connecting the hand guard to the upper receiver, as well as the rifle barrel. The suppressor baffle seats within and encloses the muzzle end of the hand guard and is detachably connected to the end of the rifle barrel The interior of the hand guard forms a large expansion chamber around the barrel that works in conjunction with the suppressor baffle to reduce the noise signature of the weapon. The suppressor baffle is configured to have vent channels that direct the expanding combustion gases expelling the bullet from the barrel rearward into the expansion chamber of the hand guard before ultimately venting through the suppressor baffle.

1 . A suppressor assembly for a firearm having a receiver and a barrel mounted to the receiver, the integral suppressor assembly comprising:
 an elongated tube detachably mounted to the receiver to extend over and axailly spaced from the barrel to define an enclosed interior tube space therein and around the barrel, the tube having a first end and a second end thereof, the first end of the tube adapted to be detachably mounted axially to the receiver to enclose and seal the first end of the tube; and   a suppressor baffle adapted to detachably connect to the barrel and seat within the second end of the tube to seal and enclose the second end of the tube, the suppressor baffle having an axial bore there through aligned with the barrel, the suppressor baffle also having a vent channel defined therein,   the vent channel of the suppressor baffle in open fluid communication with the axial bore of the suppressor baffle and the interior of the tube for directing combustion gas from the discharge of a bullet from the firearm receiver into the hand guard interior tube space between the receiver and the suppressor baffle before venting through the axial bore of the suppressor baffle.   
     
     
         2 . The assembly of  claim 1  wherein the suppressor baffle also has a plurality of irregularly shaped expansion chambers defined therein, the expansion chambers are in open fluid communication with the axial bore of the suppressor baffle. 
     
     
         3 . The assembly of  claim 1  wherein the suppressor baffle has a threaded section adapted to couple the suppressor baffle to the barrel, the threaded section forms part of the axial bore of the suppressor baffle. 
     
     
         4 . The assembly of  claim 21  wherein the suppressor baffle has a first end and a second end, the axial bore of the suppressor baffle extends between and through the suppressor baffle first end and the suppressor baffle second end, the vent channels extend through the suppressor baffle first end. 
     
     
         5 . The assembly of  claim 4  wherein the axial bore of the suppressor baffle has a threaded section formed in the suppressor baffle first end, the threaded section adapted to couple the suppressor baffle to the barrel. 
     
     
         6 . The assembly of  claim 20  and a first seal part adapted to fit between the trunnion and first end of the hand guard to seal the engagement between the hand and the trunnion part when the hand guard is mounted to the trunnion part. 
     
     
         7 . The assembly of  claim 6  wherein the first seal part is an O-ring. 
     
     
         8 . The assembly of  claim 1  and a second seal part adapted to fit between the suppressor baffle and the second end of the tube to seal the engagement between the suppressor baffle and the tube when the suppressor baffle is mounted to the barrel. 
     
     
         9 . The assembly of  claim 8  wherein the second seal part is an O-ring. 
     
     
         10 . An Integrally suppressed receiver for a firearm comprising:
 a receiver having an integral trunnion part, the trunnion having an axial bore extending there through, the axial bore configured to define an annular shoulder and a threaded female section;   an elongated barrel extending axially from the trunnion part, the barrel having a first barrel end and a second barrel end;   a barrel nut having an axial bore for receiving the barrel there through and a threaded male shaft turned into the threaded female section of the trunnion part for securing the barrel first end to the trunnion part;   an elongated tubular hand guard defining an interior thereof and having a first hand guard end and a second hand guard end, the first hand guard end detachably mounted axially over the trunnion part so that the hand guard covers the barrel and encloses the first hand guard end; and   a suppressor baffle detachably connected to the second barrel end and seated within the second hand guard end to enclose the second hand guard end, the suppressor baffle having an axial bore there through aligned with the longitudinal axis of the barrel, the suppressor baffle also having a vent channel defined therein, the vent channel of the suppressor baffle in open fluid communication with the axial bore of the suppressor baffle and the interior of the hand guard for directing combustion gas from the discharge of a bullet from the receiver into the hand guard interior between the trunnion part and the suppressor baffle before venting through the axial bore of the suppressor bore.   
     
     
         11 . The receiver of  claim 10  wherein the trunnion axial bore also configured to define an annular inner shoulder therein, the barrel extension flange, the barrel includes a barrel extension part having an annular flange abutting against the shoulder. 
     
     
         12 . The receiver of  claim 10  wherein the trunnion is configured to have a longitudinal keyhole defined therein. 
     
     
         13 . The receiver of  claim 12  wherein the barrel extension includes a pin seated within the trunnion keyhole. 
     
     
         14 . The assembly of  claim 10  wherein the suppressor baffle also has a plurality of irregularly shaped expansion chambers defined therein, the expansion chambers are in open fluid communication with the axial bore of the suppressor baffle. 
     
     
         15 . The assembly of  claim 10  wherein the suppressor baffle has a threaded section adapted to couple the suppressor baffle to the barrel, the threaded section forms part of the axial bore of the suppressor baffle. 
     
     
         16 . The assembly of  claim 14  wherein the suppressor baffle has a first end and a second end, the axial bore of the suppressor baffle extends between and through the suppressor baffle first end and the suppressor baffle second end, the vent channels formed in the suppressor baffle first end, the expansion chambers are formed in the suppressor baffle second end. 
     
     
         17 . The assembly of  claim 16  wherein the axial bore of the suppressor baffle has a threaded section formed in the suppressor baffle first end, the threaded section adapted to couple the suppressor baffle to the barrel. 
     
     
         18 . The assembly of  claim 10  and a first seal part adapted to fit between the trunnion and first end of the hand guard to seal the engagement between the hand and the trunnion part when the hand guard is mounted to the trunnion part. 
     
     
         19 . The assembly of  claim 10  and a second seal part adapted to fit between the suppressor baffle and the second end of the hand guard to seal the engagement between the suppressor baffle and the hand guard when the suppressor baffle is mounted to the barrel. 
     
     
         20 . The assembly of  claim 1  wherein the receiver includes a trunnion part extending therefrom, the barrel axially extending from the trunnion part. 
     
     
         21 . The assembly of  claim 1  wherein the suppressor baffles also has a radial bore extending between the vent channel and the axial bore of the suppressor baffle. 
     
     
         22 . The assembly of  claim 4  wherein the expansion chamber is formed adjacent the suppressor baffle second end.