Abstract: A detachable box magazine for firearms includes a hollow magazine tube extending longitudinally along a median plane. The magazine tube defines a single-stack portion extending to an upper tube end with an upper tube opening. The magazine tube defines a double-stack portion positioned below the single-stack portion and extending to a bottom tube end with a bottom tube opening. For example, opposite lateral margins of the front sidewall can have a stepped shape between the upper tube end and the double-stack portion. The rear sidewall can have a linear taper between the upper tube end and the double-stack portion.

Abstract: A display apparatus is provided that includes a plurality of contiguously arranged adjustable mounting brackets. Each of the plurality of adjustable mounting brackets includes at least one adjustable bracket that is proximally and distally extendable and a set of contiguously arranged display frames configured to be interchangeably secured to distal attachment portions of the adjustable mounting brackets. The adjustable bracket of each adjustable mounting bracket is configured to adjust to a size of the set of contiguously arranged display frames such that edges of each display frame are in contact to create a contiguous arrangement of the set of display frames.

Abstract: A detachable box magazine for firearms includes a hollow magazine tube extending longitudinally along a median plane. The magazine tube defines a single-stack portion extending to an upper tube end with an upper tube opening. The magazine tube defines a double-stack portion positioned below the single-stack portion and extending to a bottom tube end with a bottom tube opening. For example, opposite lateral margins of the front sidewall can have a stepped shape between the upper tube end and the double-stack portion. The rear sidewall can have a linear taper between the upper tube end and the double-stack portion.

Abstract: A takedown lever assembly for a striker-fired handgun. The takedown lever assembly includes a takedown actuation lever operable between a firing position and a takedown position, and a safety bar operatively coupled to the takedown actuation lever. The safety bar moves longitudinally along the frame in response to moving the takedown actuation lever from the firing position to the takedown position, thereby causing the sear to disengage from the striker.

Abstract: A handgun grip module includes a body portion extending longitudinally with a first body sidewall, a second body sidewall spaced from the first body sidewall, and a bottom body portion extending between and connecting the first body sidewall and the second body sidewall. The body portion has a distal body portion defining a recoil spring channel and a proximal body portion defining a frame box. A recoil block in the body portion is positioned between the recoil spring channel and the frame box and extends laterally between the first body sidewall and the second body sidewall. The recoil block has a distal face and a proximal face. A metallic bracket is disposed against the distal face of the recoil block. A handgrip portion extends transversely down from the body portion and defines a magazine well extending therethrough to the frame box.

Abstract: Aspects described herein relate to controlling incoming data processing requests or messages and whether the incoming data processing requests are allowed to reach destination applications unmodified. The destination application may be a secure application operating within a secure application wrapper, and the secure application wrapper may determine whether and how much of the request or message is allowed to pass into a managed partition or through the secure application wrapper to reach the secure application for processing.

Abstract: A display apparatus is provided that includes a plurality of contiguously arranged adjustable mounting brackets. Each of the plurality of adjustable mounting brackets includes at least one adjustable bracket that is proximally and distally extendable and a set of contiguously arranged display frames configured to be interchangeably secured to distal attachment portions of the adjustable mounting brackets. The adjustable bracket of each adjustable mounting bracket is configured to adjust to a size of the set of contiguously arranged display frames such that edges of each display frame are in contact to create a contiguous arrangement of the set of display frames.

Abstract: A display apparatus is provided that has multiple contiguously arranged adjustable mounting brackets that each has a proximal base portion and a distal attachment portion. There are a corresponding number of contiguously arranged display frames that are attached to the distal attachment portions of the adjustable mounting brackets. The display frames are designed to accommodate removable displays. The adjustable mounting brackets can be extended and retracted so that the display apparatus can attach to different sized mounting areas.

Abstract: A machine gun assembly includes, but is not limited to, a receiver, a barrel extension, and an interlock element. The barrel extension is mounted to the receiver and moves between forward and retracted positions with respect to the receiver. The barrel extension is configured for quick-release engagement with a barrel. The interlock element is mounted to the receiver and moves between a blocking position and a clear position. The interlock element has a blocking portion positioned to obstruct movement of the barrel extension to the forward position while in the blocking position and the blocking portion is positioned to permit movement of the barrel extension to the forward position while in the clear position. The interlock element moves to the blocking position when the barrel disengages from the barrel extension and moves to the clear position when the barrel is correctly engaged with the barrel extension.

Abstract: A machine gun assembly includes, but is not limited to, a receiver, a barrel extension, and an interlock element. The barrel extension is mounted to the receiver and moves between forward and retracted positions with respect to the receiver. The barrel extension is configured for quick-release engagement with a barrel. The interlock element is mounted to the receiver and moves between a blocking position and a clear position. The interlock element has a blocking portion positioned to obstruct movement of the barrel extension to the forward position while in the blocking position and the blocking portion is positioned to permit movement of the barrel extension to the forward position while in the clear position. The interlock element moves to the blocking position when the barrel disengages from the barrel extension and moves to the clear position when the barrel is correctly engaged with the barrel extension.

Abstract: Aspects described herein relate to controlling incoming data processing requests or messages and whether the incoming data processing requests are allowed to reach destination applications unmodified. The destination application may be a secure application operating within a secure application wrapper, and the secure application wrapper may determine whether and how much of the request or message is allowed to pass into a managed partition or through the secure application wrapper to reach the secure application for processing.

Abstract: A graphic sign fixture is described for use with a vehicle. The graphic sign fixture comprises at least two legs, a sign frame system, and a graphic sign. Each leg includes an upper post section, a lower post section, and a base section. The sign frame system comprises either a silicone edge graphic frame or a first sign frame cross-section member; a second sign frame cross-section member; and a locking system. The weight of the vehicle holds the legs in an upright position when the vehicle's wheels contact the base sections. The method comprises providing a graphic sign fixture, assembling the graphic sign fixture, and placing the wheels of a vehicle in contact with the base sections of the graphic sign fixture, such that the weight of the vehicle holds the legs of the graphic sign fixture in an upright position.

Abstract: A display apparatus is provided that has multiple contiguously arranged adjustable mounting brackets that each has a proximal base portion and a distal attachment portion. There are a corresponding number of contiguously arranged display frames that are attached to the distal attachment portions of the adjustable mounting brackets. The display frames are designed to accommodate removable displays. The adjustable mounting brackets can be extended and retracted so that the display apparatus can attach to different sized mounting areas.

Abstract: A portable book holder capable of expanding to fit various size books. The base includes an upper section that is capable of being extended in order to accommodate books that are taller. Additionally, there are two book supports that are adjustable outwardly based on the thickness of a particular book. The two book supports are also adjustable with a semi-circular base adjuster thereby allowing for the adjustment based on the width of a book. The portable book holder easily folds out to form the book support and easily folds up for portability.

Abstract: Systems, methods and apparatuses for synthesizing recommendations from financial data are provided. In one embodiment, a method is presented. The method includes receiving financial transaction data from a plurality of users related to a first merchant. Furthermore, the method includes deriving from the financial transaction data of the plurality of users a rating for the first merchant. Moreover, the method includes receiving financial transaction data from a plurality of users related to a second merchant. Also, the method includes deriving from the financial transaction data of the plurality of users a rating for the second merchant. Additionally, the method includes providing the rating for the first merchant and the rating for the second merchant to a community of users including the plurality of users.

Abstract: Systems, methods and apparatuses for synthesizing recommendations from financial data are provided. In one embodiment, a method is presented. The method includes receiving financial transaction data from a plurality of users related to a set of merchants. The method also includes deriving from the financial transaction data of the plurality of users a rating for each merchant of the set of merchants having associated financial transaction data. The method further includes providing the ratings for the merchants of the set of merchants to a community of users including the plurality of users.

Abstract: A portable book holder capable of expanding to fit various size books. The base includes an upper section that is capable of being extended in order to accommodate books that are taller. Additionally, there are two book supports that are adjustable outwardly based on the thickness of a particular book. The two book supports are also adjustable with a semi-circular base adjuster thereby allowing for the adjustment based on the width of a book. The portable book holder easily folds out to form the book support and easily folds up for portability.