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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.
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View More On Wikipedia.org
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Used complete bcm mk2 upper 20inch
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- For Sale
- For Trade
- $350
- Veneta
- Oregon
Howdy yall I need this thing gone so figured I'd let it go for a good price Its a bcm mk2 upper with a bcm bolt carrier group and a milspec charging handle, 20inch km tactical hbar barrel, magpul mlok bipod, mbus 3 sights and a bunch of rail covers Probably around 500rds through it Will trade...- Classified Ad
- Part & Accessory Classifieds
- spacecowboy5
- Replies: 1
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BCM 20inch hbar
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- For Sale
- For Trade
- $550
- Veneta
- Oregon
Howdy yall, im downsizing and figured if try my hand and sell my bcm build Its got a mk2 upper with the mcmr 15 handguard with a km tactical hbar 1/7 twist barrel and a toolcraft bcg and milspec charging handle and a aero precision lower with a psa sabre 3.5lb trigger magpul k2 grip and a...- Classified Ad
- Rifle Classifieds
- spacecowboy5
- Replies: 5
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Delton free float m16 upper
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- For Sale
- $300
- Veneta
- Oregon
Howdy yall I've got a old delton m16a4 upper that I put a midwest industries free float rail on, not doing anything with it so figured I'd try and sell it. Have had about 700rds through it now. No bcg or charging handle Thanks for looking!- Classified Ad
- Part & Accessory Classifieds
- spacecowboy5
- Replies: 2
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PSA AR15 20inch
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- For Sale
- For Trade
- $550
- FOREST GROVE
- Oregon
i recently got this on trade for a deal i was really looking for a 223 bolt for mid range blinking but this deal came up and i picked it up. The scope will not go with it and is posted separately. Unless its really wanted and the value of the deal add up to the scope aswell Great shooting rifle...- Classified Ad
- Rifle Classifieds
- casey carl
- Replies: 2
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20inch ar15 new lower price
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- For Sale
- For Trade
- $350
- SALEM
- Oregon
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...- Classified Ad
- Rifle Classifieds
- officially5150
- Replies: 2
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20inch Aero Upper, BCG, CH $300
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- For Sale
- $300
- Vancouver
- Washington
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...- Classified Ad
- Part & Accessory Classifieds
- DaveB
- Replies: 0
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Aero Precision 20inch FSP upper - $300
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- For Sale
- $300
- Vancouver
- Washington
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...- Classified Ad
- Part & Accessory Classifieds
- DaveB
- Replies: 2
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