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Adams Arms AR-15 Base A3 Gas Piston Upper Receiver Assembly Carbine 5.56x45mm NATO 16" Barrel.
1:9 Twist, not 1:7 which is rare
$525 Shipped OBO
I put free floating hand guard on it, YHM MB instead of bird cage,about 100-150 rounds, kept as spare, flawless function.
Scope not included
Technical Information •Upper Receiver: A3 Flat-Top, Forged
•Barrel Length: 16"
•Barrel Contour: M4
•Barrel Material: 4150 Chrome Moly Vanadium Steel
•Muzzle Thread Pattern: 1/2"-28
•Chrome Lined: No
•Barrel Finish: QPQ Melonite / Black Nitride
•Twist Rate: 1 in 9"
•Chamber: 5.56x45mm NATO
•M4 Feed Ramps: Yes
•Muzzle Device: A2 Flash Hider
•Gas System Length: Carbine, Short Stroke Piston Operated
•Gas Block Diameter: 0.750"
•Handguard: 2-Piece Polymer M4-Style
•Sights: None, Single Rail Gas Block
•Bolt Carrier Assembly Included: Yes
•Bolt Carrier Type: 1-Piece w/Integral Piston Strike Face
•Weight: 4.23 lbs
Bought from MidWay
1:9 Twist, not 1:7 which is rare
$525 Shipped OBO
I put free floating hand guard on it, YHM MB instead of bird cage,about 100-150 rounds, kept as spare, flawless function.
Scope not included
Technical Information •Upper Receiver: A3 Flat-Top, Forged
•Barrel Length: 16"
•Barrel Contour: M4
•Barrel Material: 4150 Chrome Moly Vanadium Steel
•Muzzle Thread Pattern: 1/2"-28
•Chrome Lined: No
•Barrel Finish: QPQ Melonite / Black Nitride
•Twist Rate: 1 in 9"
•Chamber: 5.56x45mm NATO
•M4 Feed Ramps: Yes
•Muzzle Device: A2 Flash Hider
•Gas System Length: Carbine, Short Stroke Piston Operated
•Gas Block Diameter: 0.750"
•Handguard: 2-Piece Polymer M4-Style
•Sights: None, Single Rail Gas Block
•Bolt Carrier Assembly Included: Yes
•Bolt Carrier Type: 1-Piece w/Integral Piston Strike Face
•Weight: 4.23 lbs
Bought from MidWay
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