Ammunition magazine
The present disclosure provides ammunition magazines for bottom-loading a 5.7×28 mm ammunition round or a 4.6×30 mm ammunition round into a standard AR-15 or M16 upper receiver.
1. An ammunition magazine configured to bottom-feed a plurality of ammunition rounds into an upper receiver of a firearm, the ammunition magazine comprising:
a magazine housing including two opposing lateral tines, a tail recess, a catch, and a floor plate receiver;
a spring within the magazine housing;
a floor plate retainer disposed at a bottom end of the spring;
a floor plate disposed at a bottom end of the magazine housing and reversibly mated with the floor plate retainer; and
a magazine follower disposed at a top end of the spring, the magazine follower including:
a cartridge-shaped protrusion on a top surface,
a concave surface on the top surface and disposed adjacent to the cartridge-shaped protrusion,
an opening disposed vertically through the magazine follower and through the top surface,
a front leg including a front recess disposed vertically along the front leg,
a rear leg disposed generally opposite the front leg,
a pair of lateral recesses configured to slidably mate with the two opposing lateral tines, and
a tail fin disposed adjacent the rear leg and configured to slidably mate with the tail recess.
2. The ammunition magazine of claim 1 , wherein the ammunition rounds are 5.7×28 mm rounds.
3. The ammunition magazine of claim 1 , wherein the ammunition rounds are 4.6×30 mm rounds.