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Adams Arms 12.5" P series Evo Upper 300BLK AR-15 AR15 Pistol Piston
Adams Arms 12.5' P series Evo Upper 300BLK AR-15 AR15 Pistol Piston

Adams Arms 12.5" P series Evo Upper 300BLK AR-15 AR15 Pistol Piston

Part Number:UA-12.5-P-EVO-300BLK
On sale: $899.95
Retail Price:$999.00
You Save:$99.05(10%)
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Adams Arms 12.5" P series Evo Upper 300BLK AR-15 AR15 Pistol Piston

Quickly and easily change calibers on your existing milspec AR-15 from 5.56 to the powerful and superb close quarters CQB 300BLK round. This new 12.5" 300 Blackout Upper was added to our piston driven lineup as the next generation of short-barreled options, ideal for close quarters shooting where a more compact platform is desired.  THIS IS THE UPPER ONLY, COMPLETE PISTOL LOWER SHOWN FOR EXAMPLE PURPOSE ONLY. EASILY BUILD AS A PISTOL OR OBTAIN SBR LICENSE AND THEN BUILD AS A RIFLE.
 
 
This Upper Includes:
  • Mil-Spec Forged7075-T6 M-4 Upper Receiver, Type III Class II Hard-coat anodized finish, M4 feed ramps, 1913 Picatinny rail flat top with dry lube internal finish and laser engraved T-markings
  • Bolt Carrier: 1-Piece w/Integral Piston Strike Face Low Mass - BCG and Charging Handle Included
  • 12.5" Medium Contour 4150 CM Melonited Barrel 1:9.5 twist
  • Chambered 300BLK
  • VDI .30 Cal Jet Comp
  • Samson free float light weight modular rail system
  • P series Adjustable Low Profile Gas Block (5 settings: 100%, 75%, 50%, 25%, GAS OFF)
  • Weight (as configured): 4.25 lbs

 

Complete Specifications:

Upper Receiver: A4 Flat-Top, Forged

Barrel Length: 12.5"

Barrel Contour: Medium

Barrel Material: 4150 Chrome Moly Vanadium Steel

Muzzle Thread Pattern: 5/8"-24

Chrome Lined: No

Barrel Finish: QPQ Melonite / Black Nitride

Twist Rate: 1 in 8"

Chamber: 300BLK

M4 Feed Ramps: Yes

Bolt Carrier: 1-Piece w/Integral Piston Strike Face Low Mass - BCG Included

Milspec Charging Handle Included

Muzzle Device: VDI .30 Cal Jet Comp

Gas System Length: Pistol, Short Stroke Piston Operated

Gas Block Diameter: 0.750"

Handguard: 12" Evolution Rail

Sights: None

Weight: 4.25 lbs

 

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