Patent ID: 7076904

Claim:
A detachable barrel assembly received by a receiver of a weapon comprising: (a) a weapon having a receiver; (b) an adapter threadably engaged with the receiver, said adapter including; i a threaded mating end section of first length having a free end received in the receiver, said mating end section having an inwardly extending limit flange at said free end, and ii a receiving end section of second length having an internal flange, said receiving end section having an internal thread therein; and (b) a detachable barrel having an attaching end affixed to the adapter, said detachable barrel including; i an alignment section inserted into the mating end section, said alignment section contacting the limit flange; ii a securing section having an external thread thereon for threaded engagement with the receiving end section, said securing section contacting the internal flange; and iii a barrel section having an outside diameter which forms an external shoulder at the juncture of the securing section and the barrel section, the external shoulder contacting the receiving end section of the detachable barrel to the adapter.