Pivotal adapter for bipods and attachment therefor

A mounting assembly for removably attaching a bipod to a firearm, said apparatus comprising:

• a base having a facing means for contoured cradling of a forestock of a firearm;
• strap means for providing releasable attachment of said base to the firearm, said strap means being connected to said base portion for encircling of said firearm;
• means for clampingly engaging the firearm between said strap means and said facing means;
• and
• means for attachment of a bipod assembly to said base member.

A bipod adapter for use on a semi-automatic firearm, said semi-automatic firearm including a gas block having a threaded bore therein, a fore-end cap adapted for being fastened to said gas block with a fastener, said bipod adapter comprising:

• an adapter base having portions defining a bore therethrough, said base being associated with said firearm generally perpendicular to the longitudinal axis of the barrel when in assembled relationship on said firearm;
• means on said adapter base for substantially engaging portions of the barrel for inhibiting rotational movement of said bipod adapter;
• fastener means for providing axial forces against said base for fastening of said fore-end cap and said base to said gas block;
• and
• means for attachment of a bipod to said base.

A pivotal adapter for pivotally attaching a bipod to a firearm comprising:

• a first base portion;
• means for attaching said first base portion to a firearm;
• a second leg supporting base portion having a pair of bipod legs pivotally attached thereto;
• means for providing pivotal engagement between said first base portion and said second leg supporting base;
• a tensioning means for providing variable frictional resistance at said means for providing pivotal engagement such that the torsional forces necessary for imparting pivotal movement between said first base portion and said second leg supporting base portion is selectively adjustable.

A pivotal adaptor for pivotally attaching a bipod to a fireman for providing motion in a plane traverse to the axial direction of the barrel, said pivotal adapter comprising:

• a mounting bracket, said mounting bracket including a pair of flanges, said flanges including portions thereof defining a pair of bores therein which are co-axial with the axial direction of the barrel;
• a base portion adapted to be attached to a fireman;
• said base portion including a pair of opposed pivotal pins on opposite sides of said base portion which engage said bores of said flanges and are pivotal therein;
• a means for attachment of a bipod to said mounting bracket;
• and
• spring means for providing biased engagement between said mounting bracket and said portion thereby biasing against pivotal movement between said mounting bracket and said base portion for inhibiting unintended pivoting and rattling of said mounting bracket.

A pivotal adapter for pivotally attaching a bipod to a fireman for providing pivotal motion in a plane transverse to the axial direction of the barrel, said pivotal adaptor comprising:

• a mounting bracket;
• a means for attachment of a bipod to said mounting bracket;
• a base portion adapted to be attached to a fireman;
• a means for providing pivotal engagement between said mounting bracket and said base portion, said means for providing pivotal engagement including a pair of pivot pins on either said mounting bracket or said base portion and a pair of flanges on the other of said mounting bracket or said base portion, with portions thereof defining a pair of bores coaxial with the direction of said barrel for pivotal engagement with said pivotal pins;
• and
• spring means for providing biased engagement between said mounting bracket and said base portion thereby biasing against pivotal movement between said mounting bracket and said base portion for inhibiting unintended pivoting and rattling of said mounting bracket.