Retention holster for a firearm having an offset mounted accessory

1. A holster for receiving and releasably retaining a handgun and an accessory attached to the handgun, the accessory being offset in a latitudinal direction from a barrel bore axis of the handgun, the holster comprising:

a holster body extending from a substantially open top portion to a bottom portion and defining a cavity, wherein a longitudinal axis of the holster extends generally from the open top portion to the bottom portion, the cavity including a frame/slide receiving portion and an accessory receiving portion, the frame/slide receiving portion sized to receive a slide of the handgun and the accessory receiving portion being dimensioned to receive the accessory, wherein the accessory receiving portion is offset in the latitudinal direction relative to the frame/slide receiving portion;

a lever, wherein said lever includes a first side facing generally outward from said cavity and a second side facing generally toward said cavity, wherein said lever is pivotally attached to a first side wall of said holster;

the lever having a locking portion extending from a surface of said second side of said lever, wherein said lever is pivotable between an engaged position and a disengaged position and wherein said lever is biased to said engaged position, and

wherein, when said lever is in said engaged position, said locking portion protrudes through an opening in said first side wall, into said cavity, such that said locking portion extends into said cavity.

2. The holster of claim 1 , wherein said cavity includes a frame/slide portion and a trigger guard portion.

3. The holster of claim 1 , wherein a depth of said frame/slide portion is different from a depth of said trigger guard portion.

4. The holster of claim 1 wherein further comprising a retention guard positioned above the slide/frame cavity portion, the retention guard movable between a blocking position and a non-blocking position with respect to the handgun.

5. A holster for receiving a handgun with an accessory mounted to a rail of the handgun, the accessory laterally offset from an axis of the rail, the holster comprising:

a holster body extending from a substantially open top portion to a bottom portion and the holster body defining a cavity having a forward frame/slide cavity portion for receiving a frame/slide portion, and a lower cavity portion for receiving the accessory and, wherein a longitudinal axis of said holster extends generally from said open top portion to said bottom portion;

a finger button for releasing the handgun movably connected with respect to the holster body, the finger button facing generally outward;

a trigger guard locking portion operably connected to the finger button, the locking portion movable between an engaged position and a disengaged position with the handgun when the handgun is in the holster by way of depressing the finger button;

wherein the lower portion of the cavity is offset in a latitudinal direction from said longitudinal axis of said holster.

6. The holster of claim 4 , wherein said walls of said holster are contoured to accommodate a specific type or model of handgun and accessory to be retained within said holster.

7. The holster of claim 5 , further comprising one or more slots, wherein said slots define a passive retention portion for providing frictional retention of an accessory to be retained within said holster.

8. The holster of claim 5 , further comprising a retention guard positioned above the slide/frame cavity portion, the retention guard movable between a blocking position and a non-blocking position with respect to the handgun.

9. The holster of claim 8 , wherein the release of the retention guard may is by a user's thumb.

10. The holster of claim 5 , wherein the release of the trigger guard locking portion is by a finger.

11. The holster of claim 5 , wherein trigger guard locking portion has an engagement end that includes a ramp surface configured such that, as said handgun is inserted into said cavity of said holster, said trigger guard will contact said ramp surface and displace said engagement end in a direction away from said trigger guard until a point at which said ramp surface is no longer in contact with said trigger guard, whereupon said engagement end will move in a direction toward said trigger guard and secure said handgun in said holster.

12. The holster of claim 5 , wherein said finger button is part of a lever and the lever is biased, via a spring, to said engaged position.

13. The holster of claim 12 , wherein said lever is pivotally attached, via a pivot pin.

14. The holster of claim 5 , wherein said finger button end is uncovered.

15. A holster comprising:

a holster body extending from a substantially open top portion to a bottom portion and defining at least a partial cavity for receiving a handgun and an optionally attached accessory, wherein a longitudinal axis of said holster extends generally from said open top portion to said bottom portion, wherein said cavity includes a frame/slide portion and an accessory portion, and wherein said accessory portion is offset in a latitudinal direction from said longitudinal axis;

a pivot pin supported by the holster body, the pivot pin being disposed atop a first side wall of the holster body at location outside of the cavity;

a lever pivotally supported by the pivot pin, the pivot pin extending through the lever at a location between a finger button end and an engagement end; and

a locking portion connecting to a finger button, with the locking portion movable between an engaged position and a disengaged position, wherein said locking portion is biased to said engaged position, and wherein, when said locking portion is in said engaged position, said locking portion interferes with the withdrawal of the handgun by way of a trigger guard of the handgun.

16. The holster of claim 1 in combination with the handgun and the accessory attached to the handgun.

17. The holster of claim 5 in combination with the handgun and the accessory attached to the handgun.