摘要:
A firearm attachment (200) includes a base (202) adapted to be coupled to a firearm. The firearm attachment (200) also includes a plurality of substantially longitudinal tines (208) extending forwardly from the base (202) and arranged circumferentially around a central axis (206) of the attachment. The firearm attachment (200) also includes at least one bore (204) substantially concentric with the central axis (206). The firearm attachment (200) also includes three longitudinal slots (212) defined by sidewalls (210) of adjacent ones of the tines (208) and adapted to pass combustion gases from the bore (204). The sidewalls (210) extend from the bore (204) to an outer circumfery of the attachment. Sidewalls (210) of adjacent tines (208) lie in respective planes that intersect at an angle in a range of approximately 9 degrees to approximately 12 degrees.
摘要:
A metal core circuit board assembly includes a metal core circuit board (135) having a through hole (210) in an embodiment. A shaft (205) for a pin (150) is inserted in the through hole such that cap (200) of the pin abuts a foil layer on the circuit board (135). The shaft diameter is sufficiently smaller than the through hole diameter such that the shaft is electrically isolated from a metal core of the circuit board. The cap is undercut about the through hole to further isolate the pin from the non - electrically isolated portion of the metal core circuit board.
摘要:
Mounting device for an accessory (11), such as a lamp (27) for guns. Said accessory (11) is connected to an adapter (10) which is provided with a gripping means (17; 22). Said gripping means (17, 22) comprises a spring biased clamping mechanism (15; 18; 20; 22; 24) and a counter stay (17) cooperating with said clamping mechanism.