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20inch
The QF 3 inch 20 cwt anti-aircraft gun became the standard anti-aircraft gun used in the home defence of the United Kingdom against German airships and bombers and on the Western Front in World War I. It was also common on British warships in World War I and submarines in World War II. 20 cwt referred to the weight of the barrel and breech, to differentiate it from other 3 inch guns (1 cwt = 1 hundredweight = 112 lb, 51 kg, hence the barrel and breech together weighed 2,240 lb, 1,020 kg). While other AA guns also had a bore of 3 inches (76 mm), the term 3 inch was only ever used to identify this gun in the World War I era, and hence this is what writers are usually referring to by 3 inch AA gun.
Selling a 20 inch ar15 with a heavy profile barrel
Build is
Bear creek upper with 1-7 twist side charging upper
Standard birdcage flash hider
Radical firearms lower with magpul pistol grip
B5 systems sopmod enhanced buttstock
Includes one 20rnd mag
Optic has been removed
Prefer to meet at...
For sale here is my Aero Precision 20inch upper with BCG and Charginghandle. It's a front sight post upper and has an ODG handguard on it. Also included is a BCM extended charging handle. Has a VG6 flash hider on it. Has about 1k rounds down the pipe, has been 100% reliable. Asking 300bucks...
For sale here is my Aero Precision 20inch upper with BCG and Charginghandle. It's a front sight post upper and has an ODG handguard on it. Also included is a BCM extended charging handle. Has a VG6 flash hider on it. Has about 1k rounds down the pipe, has been 100% reliable. Asking 300bucks...