Submachine gun having a pistol grip 360 degrees rotative about the barrel

Claim 1

A submachine gun comprising a barrel, a forward housing, a rear housing, a bolt body, an assembly collar, a forward assembly nut, a butt plug, a recoil buffer spring and a bolt spring wherein; the barrel is threaded into the assembly collar, and the assembly collar has shoulder wih a plurality of spring balls, which rotatably engages the forward housing, and; the assembly collar having a chamber for receiving and guiding ammunition and slots on each side through which side rails slide, and the rear housing having a slot in its top and having a magazine housing and; the bolt body comprising a rear bolt, a forward bolt, and two side rails wherein the two side rails are rigidly affixed one on each side to the forward bolt and the rear bolt and; the rear bolt containing a firing pin and extractor mechanism and being slideably inserted in the rear housing, and having a tap on its top, and; the assembly collar having a ring flange to which the rear housing is rigidly affixed, and the assembly collar having slots on each side, and the two side rails being rigidly affixed one on each side of the rear bolt, said rails protruding forward past the slots on the assembly collar, and said side rails being rigidly affixed to the forward bolt, and; the forward bolt having in its rear a spring recess to engage the bolt spring, and said forward bolt having in its forward end a multiplicity of ring grooves, and; the bolt spring slideably installed over the barrel and between the assembly collar and the forward bolt, and; the forward housing having a shoulder at its rear end, said shoulder having detents to accept the spring balls in the assembly collar, said shoulder in the forward housing being rotatably mated with the shoulder on the assembly collar, and the front of the forward housing being rotatably sized to slide over the barrel, a sling swivel rotatably slid over the muzzle nut, and the muzzle nut threaded onto the muzzle end of the barrel to secure the forward housing rotatably in place, the forward housing having the trigger mechanism, pistol grip and sear, said sear mateably engaging the multiple ring grooves on the forward bolt, and; a knurled bolt knob which is inserted through the slots in the top of the rear housing and affixed to the top of the rear bolt, and; the recoil spring assembly is installed in the rear of the rear housing and secured therein by a butt plug threaded or pinned into the rear housing, said butt plug having a rear sling swivel rotatably mounted thereon, and; a sight bridge rigidly affixed to the front housing, and; an adjustable stock having generally a body pad rotatably mounted on two extension arms each of which has notches, said extension arms slideably mating with channels in the rear housing and; a stock latch pivotally mounted on the bottom of the rear housing, said stock latch having two latch hooks each hook engaging notches on one of the extension arms, and said stock latch being biased in the latched position by a latch spring.