Adams Arms AR-15 Pistol PDW Tactical Elite A3 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 7.5" Barrel
- Videos (2)
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: 7.5"
- Barrel Contour: Medium
- 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: Pistol, Short Stroke Piston Operated
- Gas Block Diameter: 0.750"
- Handguard: Samson 7" Extended STAR-4-EX Quad Rail, Free Float
- Sights: None
- Bolt Carrier Assembly Included: Yes
- Bolt Carrier Type: 1-Piece w/Integral Piston Strike Face
- Extras: Single Rail Piston Gas Block
- Weight: 3.82 lbs
Please Note: An “AR-15 Pistol” upper assembly has a barrel less than 16” in length. Pistol uppers are only for use on AR-15 pistol lowers and legal Short-Barreled Rifles. Other configurations may violate Federal law.
Please Note: Installation of AR-15 upper assemblies with certain features including, but not limited to: flash hiders, bayonet lugs, and threaded muzzles may violate state and/or local laws.
Thank you! Your valuable feedback helps improve our product information and offering.
Hogue Overmolded Beavertail Pistol Grip AR-15 with Finger Grooves
$21.56 - $23.96
KNS Front Sight Post AR-15 Hooded Reticle Matte
Fiocchi Extrema Ammunition 223 Remington 50 Grain Hornady...
$21.49 - $104.99Sale — Select Items Save up to $3.50 (14%)
Sig Sauer SBX Pistol Stabilizing Brace AR-15
Magpul Stock ACS-L Collapsible AR-15 Carbine Synthetic
Magpul MBUS Gen 2 Flip-Up Front Sight Handguard Height AR-15...
Magpul MBUS Gen 2 Flip-Up Rear Sight AR-15 Polymer
Magpul AFG Angled Forend Grip AR-15 Polymer
Midwest Industries Receiver Extension Sig Brace Pistol Buffer...
Kel-Tec Grip Extension Kel-Tec PF9 Black
DPMS Lower Receiver Parts Kit AR-15
$65.99Sale Save $7.00 (10%)
Atlas BT10-NC Bipod No Clamp Style Mount 4.75" to 9" Aluminum...
Magpul MOE Enhanced Trigger Guard AR-15 Polymer
DPMS AR-15 Takedown Pin Punch Delrin
Magpul MOE Plus Pistol Grip AR-15 Rubber
AR-Stoner Magazine AR-15 223 Remington with Anti Tilt Follower...
$12.99 - $18.99Save up to $8.00 (30%)
"The Competitive AR15 Builders Guide" Book By Glen D. Zediker
"The AR-15 Complete Assembly Guide, Volume 2" Book by Walt...
ACE Improved Pistol Receiver Extension Buffer Tube Assembly...
Troy Industries Rear Flip-Up Battle Sight AR-15 Flat-Top Aluminum
$109.99 - $121.99Sale — Select Items Save up to $12.00 (10%)
Troy Industries Front Flip-Up Battle Sight HK-Style AR-15...
$89.99 - $132.99Sale — Select Items Save up to $12.00 (12%)