Adams Arms AR-15 Base A3 Gas Piston Upper Receiver
Factory New Condition
FFL is not required
Current Bid
$325.00
BuyNow! Price Was
$400.00
Starting Bid
$250.00
No Reserve!
5 Bids Bid History
Time Left 15 min rule
Item has Ended
7/31/2017 11:36 AM
Item 669979397
Location Beaumont, TX 77701
Shipping Buyer pays actual shipping costs for the following option(s): Ground, Priority
See Item Description
No international shipments
Payment PayPal, USPS Money Order
Checkout Yes
Sales Tax
Seller does not collect sales tax
Inspection/ Return Policy
Unspecified

The seller of this item assumes all responsibility for this listing. You must contact the seller to resolve any questions or concerns before placing a bid. Payment must be made using U.S. dollars ($) unless otherwise stated in the listing. Firearms may only be shipped to a licensed dealer (FFL Holder). Some listed items may not be legal in every state. Complete your purchase within the law.

Please read the Item Characteristics for important listing details.

Adams Arms AR-15 Base A3 Gas Piston Upper Receiver Assembly Carbine 5.56x45mm NATO 16" Barrel; This Adams Arms AR-15 A3 Base Carbine Gas Piston Upper Assembly is chambered in 5.56x45mm NATO and comes ready to fire right out of the box after installation onto any standard AR-15 lower receiver. This Base Carbine upper comes equipped with a 16" melonite-finished barrel, A2 flash hider, bolt carrier group, charging handle, picatinny rail gas block, delta ring assembly and a set of polymer M4-style handguards. Additional features include a forged A3 flat-top configuration that's ready to accept the shooter's choice of optic and/or rear iron sight, M4 feed ramps to help ensure reliable feeding and functioning during rapid strings of fire, and a carbine length gas system. The upper's barrel has been finished inside and out with Adams Arms' proprietary QPQ Melonite treatment that bonds with the metal on a molecular level. Also referred to as salt bath nitriding, this treatment produces an extremely hard, slick surface on steel that resists carbon adhesion and increases corrosion resistance, extending a barrel's service life by reducing the friction produced inside the bore upon firing for a net decrease in bore surface wear over time. Nitriding converts the barrel steel's surface without any build-up, retaining all of the benefits of traditional chrome lining without suffering the accuracy degradation commonly encountered due to uneven application of chrome inside the barrel's bore. The end result is a barrel that's capable of producing accuracy on par with a match stainless steel tube, while also exhibiting the longevity and resilience of a chrome lined, mil-spec barrel. All Adams Arms uppers feature a short stroke gas piston operating system, which prevents hot gas and debris from being directed back into the action upon firing. The result is a rifle that runs cooler, cleaner and more reliably than those utilizing a standard direct gas impingement system of operation. To ensure that damage doesn't occur to the buffer tube from carrier tilt, the bolt carrier is equipped with enlarged "skis" to help guide it into the receiver extension. The bolt carrier's solid steel, 1-piece construction incorporates an integral piston strike face to guarantee integrity over time, while the bolt assembly is spring loaded for proper lock-up and to help reduce bolt bounce and cam pin wear. All piston components are finished in QPQ Melonite for corrosion resistance and easy cleaning/maintenance. 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 7" 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
Seller provided no "Additional Terms of Sale"
Manufacturer
Adams
Model
AR-15 Base A3 Gas Piston Upper
Caliber
5.56mm NATO
Barrel Length
16 inch
Capacity
30-39
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