Adams Arms AR-15 P1 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 16” Barrel
$619.99
Specifications
Product Information
| Cartridge | 5.56x45mm NATO |
| Finish | QPQ Black |
| Material | Aluminum |
| Weight | 4.375 Pound |
| Barrel Length | 16 Inches |
| Twist | 1:7 Inches |
| Threads | 1/2″-28 |
| Barrel Contour | Government |
| Sights | No |
| Barrel Finish | QPQ Black |
| Chrome Lined | No |
| Gas Block Diameter | 0.75 Inches |
| Gas System Length | Carbine, Short Stroke Piston Operated |
| M4 Feed Ramps | Yes |
| Upper Receiver Type | AR-15 Flat-Top Gas Piston |
| Barrel Material | 4150 Chrome Moly Vanadium Steel |
| Handguard | Magpul MOE Mid-length |
| Bolt Carrier Assembly Included | Yes |
| Muzzle Device | A2 |
| Mil-Spec or Commercial | Mil-Spec |
| Compatible With |
AR-15
|
Delivery Information
| Shipping Weight |
5.255 Pounds
Product Overview
This Adams Arms P1 Mid 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. The Base Mid 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 Magpul MOE 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 mid length gas system for a smoother recoil impulse and longer sight radius.
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 with it due to the 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.
Features
- Magpul MOE handguard
- 16″ QPQ melonite barrel
- A2 flash hider
Related products
-
Quick View
AR-STONER LR-308 A3 Billet Upper Receiver Assembly 308 Winchester 16″ Barrel 15″ Ultralight M-LOK Handguard
$429.99Add to cartSpecifications
Product Information
Cartridge 308 Winchester Finish Matte Material Aluminum Weight 5.75 Pound Barrel Length 16 Inches Twist 1:10 Inches Threads 5/8″-24 Barrel Contour Heavy Sights No Barrel Finish Matte Chrome Lined No Gas Block Diameter 0.75 Inches Gas System Length Mid-Length M4 Feed Ramps Yes Upper Receiver Type A3 Flat-Top Barrel Material 4150 Chrome Moly Vanadium Steel Handguard 15″ Ultralight M-LOK Bolt Carrier Assembly Included Yes Muzzle Device Flash Hider Mil-Spec or Commercial Commercial Country of Origin United States of America Compatible With AR-10, LR-308Delivery Information
Shipping Weight 6.680 Pounds
-
Quick View
AR-STONER AR-15 A3 Upper Receiver Assembly 450 Bushmaster 16″ Barrel 15″ Ultralight M-LOK Handguard
$329.99Add to cartSpecifications
Product Information
Cartridge 450 Bushmaster Color Black Finish Anodized Material Aluminum Weight 4.8 Pound Barrel Length 16 Inches Twist 1:24 Inches Threads 5/8″-32 Barrel Contour Heavy Barrel Finish Parkerized Chrome Lined No Gas Block Diameter 0.875 Inches Gas System Length Carbine M4 Feed Ramps No Upper Receiver Type A3 Flat-Top Barrel Material 4150 Chrome Moly Vanadium Steel Handguard 15″ Ultralight M-LOK Bolt Carrier Assembly Included Yes Muzzle Device Flash Hider Country of Origin United States of America Compatible With AR-15Delivery Information
Shipping Weight 5.880 Pounds
-
Quick View
Colt AR-15 Upper Receiver Assembly 5.56x45mm 16″ Barrel Monolithic Rail
$999.99Add to cartSpecifications
Product Information
Cartridge 5.56x45mm NATO Finish Black Parkerized Material Aluminum Style Monolithic Free Floating Barrel Length 16 Inches Twist 1:7 Inches Threads 1/2″-28 Barrel Contour M4 Sights Yes Barrel Finish Black Parkerized Chrome Lined Yes Gas Block Diameter 0.75 Inches Gas System Length Carbine M4 Feed Ramps Yes Upper Receiver Type A3 Flat-Top Barrel Material Chrome Moly Vanadium Steel Handguard Free Float Monolithic Bolt Carrier Assembly Included Yes Muzzle Device A2 Flash Hider Mil-Spec or Commercial Mil-Spec Compatible With AR-15Delivery Information
Shipping Weight 5.350 Pounds
-
Quick View
AR-STONER AR-15 A3 Upper Receiver Assembly 350 Legend 16″ Barrel with 15″ M-LOK Ultralight Handguard
$379.99Add to cartSpecifications
Product Information
Color Black Finish Anodized Material Aluminum Weight 3.9 Pound Barrel Length 16 Inches Twist 1:16 Inches Threads 5/8″-24 Barrel Contour M4 Barrel Finish Parkerized Chrome Lined No Gas Block Diameter 0.75 Inches Gas System Length Carbine M4 Feed Ramps Yes Upper Receiver Type A3 Flat-Top Barrel Material 4150 Chrome Moly Vanadium Steel Handguard 15″ M-Lok Ultralight Bolt Carrier Assembly Included Yes Muzzle Device Flash Hider Country of Origin United States of America Delivery Information
Shipping Weight 5.110 Pounds
Reviews
There are no reviews yet.