In some embodiments, an archery bow comprises a riser, a first limb, a second limb and a bowstring. The riser comprises a first rail, a second rail and a plurality of connecting members extending between the first rail and the second rail. The riser comprises an accessory cavity comprising an aperture through the first rail. The aperture comprises an asymmetrical shape. In some embodiments, the aperture comprises a first aperture and the accessory cavity comprises a second aperture through the second rail. In some embodiments, the second aperture has the same shape as the first aperture.

A modular survival tool including a tool body having a tomahawk axe selectively disposed on a top end thereof, a storage compartment therein, a pair of forward protrusions to which a pair of limb members forming a bow are selectively mounted for storage, a pair of angled rearward protrusions are disposed on a rear side of the tool body and the limb members attached thereto to form the bow, and a bow string attached to upper ends of the rearward protrusions. A modular arrow has connectable components stored within the storage compartment but assemble into an arrow for use with the bow. At least one arrow rest is disposed on one of a right side and a left side of the tool body to assist in aiming the arrow. A fire starting surface is disposed on a removable cap over the bottom end, which provides access to the storage compartment.

An archery bow comprises a structural riser that comprises a plurality of cells arranged in a repeating pattern. In some embodiments, the riser comprises multiple pluralities of similarly shaped cells, wherein each plurality comprises a different shape. In some embodiments, a bow comprises one or more rotatable members. Each rotatable member can comprise a plurality of cells arranged in a repeating pattern. In some embodiments, cell shapes in the rotatable member(s) are similar to cell shapes in the riser.

An archery bow comprises a structural riser that comprises a plurality of cells arranged in a repeating pattern. In some embodiments, the riser comprises multiple pluralities of similarly shaped cells, wherein each plurality comprises a different shape. In some embodiments, a bow comprises one or more rotatable members. Each rotatable member can comprise a plurality of cells arranged in a repeating pattern. In some embodiments, cell shapes in the rotatable member(s) are similar to cell shapes in the riser.

Devices, assemblies and methods are described for launching a projectile. A launching device includes a support extending along a first plane and having an outward surface and an inward surface spaced from the outward surface, the inward surface defining a space. The launching device further includes first and second elastic members extending between opposing first and second elastic member ends, respectively. The first and second elastic member ends are coupled to the support with the first elastic member ends spaced from each other and the second elastic member ends spaced from each other. The launching device further includes a handle grip coupled to the support and extending along a second plane perpendicular to the first plane.

At a second fitting part, inclination of the limb can be easily adjusted and corrected by an eccentric locator. The archery bow is characterized in that: the limb-side second fitting part of a limb has a projection with a convex cross section protruding from the surface of the limb of the limb-side second fitting part; the handle riser-side second fitting part of a handle riser has a housing part with a concave cross section to house the projection with a convex cross section; in the housing part, a side face near a bottom is smaller in diameter than an opening; and the limb and the handle riser are joined by joining the limb-side first fitting part and the handle riser-side first fitting part and joining the limb-side second fitting part and the handle riser-side second fitting part. The limb and handle are prevented from vibrating left and right.

At a second fitting part, inclination of the limb can be easily adjusted and corrected by an eccentric locator. The archery bow is characterized in that: the limb-side second fitting part of a limb has a projection with a convex cross section protruding from the surface of the limb of the limb-side second fitting part; the handle riser-side second fitting part of a handle riser has a housing part with a concave cross section to house the projection with a convex cross section; in the housing part, a side face near a bottom is smaller in diameter than an opening; and the limb and the handle riser are joined by joining the limb-side first fitting part and the handle riser-side first fitting part and joining the limb-side second fitting part and the handle riser-side second fitting part. The limb and handle are prevented from vibrating left and right.

In some embodiments, an archery bow comprises a riser, a limb assembly attached to the riser and a stabilizer. The limb assembly comprises a first limb member and a second limb member. The stabilizer is attached to the riser, and at least a portion of the stabilizer is oriented between the first limb member and the second limb member.

In some embodiments, an archery bow comprises a riser, a limb assembly attached to the riser and a stabilizer. The limb assembly comprises a first limb member and a second limb member. The stabilizer is attached to the riser, and at least a portion of the stabilizer is oriented between the first limb member and the second limb member.

A crossbow includes a barrel with a flight groove, and a bow. A magazine is mounted to the body and located above the flight groove. A passage is defined through the magazine for accommodating multiple arrows therein. A slot is formed between the magazine and the flight groove. A string of the bow movably extends through the slot. An arm is pivotably located in the passage and includes a hook end which normally presses on a top-most arrow of the arrows in the magazine. When no arrow is in the magazine, the hook end is inserted into the slot and the user cannot successfully cock the string because the string is stopped by the hook end, so that the user is acknowledged that there is no arrow in the magazine.