公开(公告)号：EP2663827B1

公开(公告)日：2018-10-24

申请号：EP12701413.2

申请日：2012-01-13

申请人： Armwest, LLC

发明人： SULLIVAN, Leroy James ,  MCGARRY, James ,  WATERFIELD, Robert Lloyd ,  LATULIPPE, JR., Paul N.

IPC分类号： F41A5/18 ,  F41A5/26 ,  F41A5/28 ,  F41A3/26 ,  F41A3/70 ,  F41A5/24 ,  F16J9/16 ,  F41A13/12 ,  F41A3/14 ,  F41A21/24

CPC分类号： F41A3/26 ,  F16J9/16 ,  F41A3/14 ,  F41A3/70 ,  F41A5/18 ,  F41A5/24 ,  F41A5/26 ,  F41A5/28 ,  F41A13/12 ,  F41A21/24

摘要： A firearm can have a bolt having a plurality of locking lugs that are configured to have a shear area that is at least approximately 1.3 times that of a standard M16/M4. A piston can be formed on the bolt and can have a plurality of rings that are configured to cooperate with the piston to mitigate gas leakage past the piston. Each of the rings can have a key formed thereon and a gap formed therein such that the gap of one ring is configured to receive at least a portion of the key of another ring. The bolt carrier can have a double cut cam.

公开(公告)号：EP2663827A2

公开(公告)日：2013-11-20

申请号：EP12701413.2

申请日：2012-01-13

申请人： Armwest, LLC

发明人： SULLIVAN, Leroy James ,  MCGARRY, James ,  WATERFIELD, Robert Lloyd ,  LATULIPPE, JR., Paul N.

IPC分类号： F41A5/18 ,  F41A5/26 ,  F41A5/28 ,  F41A3/26 ,  F41A3/70 ,  F41A5/24 ,  F16J9/16 ,  F41A13/12 ,  F41A3/14 ,  F41A21/24

CPC分类号： F41A3/26 ,  F16J9/16 ,  F41A3/14 ,  F41A3/70 ,  F41A5/18 ,  F41A5/24 ,  F41A5/26 ,  F41A5/28 ,  F41A13/12 ,  F41A21/24

摘要： A firearm can have a bolt having a plurality of locking lugs that are configured to have a shear area that is at least approximately 1.3 times that of a standard M16/M4. A piston can be formed on the bolt and can have a plurality of rings that are configured to cooperate with the piston to mitigate gas leakage past the piston. Each of the rings can have a key formed thereon and a gap formed therein such that the gap of one ring is configured to receive at least a portion of the key of another ring. The bolt carrier can have a double cut cam.