Method and tool for promptly aligning the mating port of a gas block with the gas port of a rifle barrel. The prompt alignment of the mating port and gas port is accomplished by using an alignment tool have an alignment port and an alignment slot. The alignment tool is inserted into the gas block such that the alignment port is centered over the mating port and that a portion of the alignment tool protrudes from the gas block. The top surface of the alignment tool is marked circumferentially and the forward end of the gas block is marked perpendicular to the alignment slot. The alignment tool is then removed from the gas block and affixed to the rifle barrel such that the alignment port is centered over the gas port. The barrel is marked through the alignment slot in line with the circumferential marking on the top surface of the alignment tool. The alignment tool is removed and the barrel inserted through the gas block until the marking on the forward end of the gas block is aligned with the marking on the barrel.

Method and tool for promptly aligning the mating port of a gas block with the gas port of a rifle barrel. The prompt alignment of the mating port and gas port is accomplished by using an alignment tool have an alignment port and an alignment slot. The alignment tool is inserted into the gas block such that the alignment port is centered over the mating port and that a portion of the alignment tool protrudes from the gas block. The top surface of the alignment tool is marked circumferentially and the forward end of the gas block is marked perpendicular to the alignment slot. The alignment tool is then removed from the gas block and affixed to the rifle barrel such that the alignment port is centered over the gas port. The barrel is marked through the alignment slot in line with the circumferential marking on the top surface of the alignment tool. The alignment tool is removed and the barrel inserted through the gas block until the marking on the forward end of the gas block is aligned with the marking on the barrel.

A device mountable on a pistol holster configured for detecting when a pistol is removed from the holster and, when removed, for activating a controller to receive, process, and record in memory audio signals from a microphone and to receive, process, and record in memory motion and compass direction signals. A connector is provided for transferring signal data to an external device configured with software for analyzing the acoustical characteristic of gunshots.

A firearm having a laser induced friction surface. A method for forming the laser induced friction surface on the firearm may includes the steps of disposing the laser machine adjacent to a component of the firearm, adjusting the laser machine, then applying the laser beam of the laser machine onto a component surface.

A firearm having a laser induced friction surface. A method for forming the laser induced friction surface on the firearm may includes the steps of disposing the laser machine adjacent to a component of the firearm, adjusting the laser machine, then applying the laser beam of the laser machine onto a component surface.

A method and apparatus for limiting the amount of rotation of a upper assembly in relation to a sub-assembly is disclosed. The apparatus comprises a pin corresponding to a pinhole of a sub-assembly of a firearm. A bumper is coupled to the pin by a connector. When the pin is placed in the pinhole, the bumper will prevent full rotation of the upper in relation to the sub-assembly while allowing some separation. The method comprises replacing a front pin of a firearm with a pin such that bumper abuts the upper and the sub-assembly when the upper is rotated about the pin. When the upper is rotated, the magazine is removed.

An elastomer shock absorber for the trigger assembly of a firearm utilizing an elastomer shock absorber positioned between a moving part of the trigger assembly and the frame assembly. Adhesive mounting of the elastomer to the back of the trigger or positioning the elastomer internal to the frame assembly both provide significant reductions in the shock transfer of trigger energy to the gun body, thereby increasing the accuracy of the firearm.

An elastomer shock absorber for the trigger assembly of a firearm utilizing an elastomer shock absorber positioned between a moving part of the trigger assembly and the frame assembly. Adhesive mounting of the elastomer to the back of the trigger or positioning the elastomer internal to the frame assembly both provide significant reductions in the shock transfer of trigger energy to the gun body, thereby increasing the accuracy of the firearm.

A firearm spring compression tool includes a base configured for anchoring the tool in a magazine well. A yoke is mounted on the base and includes a pair of arms configured for capturing a delta ring (D-ring) or other component on a firearm. An actuator is rotatably mounted on the yoke and is rotatable between a first, placement position for placing the yoke over the uncompressed D-ring and a second, compressed, release position. With the actuator in its second position, the D-ring is compressed whereby a handguard component of the firearm is released for removal in connection with a firearm servicing procedure.

A firearm spring compression tool includes a base configured for anchoring the tool in a magazine well. A yoke is mounted on the base and includes a pair of arms configured for capturing a delta ring (D-ring) or other component on a firearm. An actuator is rotatably mounted on the yoke and is rotatable between a first, placement position for placing the yoke over the uncompressed D-ring and a second, compressed, release position. With the actuator in its second position, the D-ring is compressed whereby a handguard component of the firearm is released for removal in connection with a firearm servicing procedure.