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Davidson Defense "Heileen" AR-15 Pistol Upper Receiver 10.5" .300 Blackout 4150 CMV 1-8T Heavy Barrel 7" M-Lok Handguard (Assembled or Unassembled)

Part Number: PI-27221
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Davidson Defense
Davidson Defense 'Heileen' AR-15 Pistol Upper Receiver 10.5' .300 Blackout 4150 CMV 1-8T Heavy Barrel 7' M-Lok Handguard (Assembled or Unassembled)
On sale $649.99 $319.99
Retail Price:$649.99
Your Savings:$330.00(51%)
In Stock

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Davidson Defense "Heileen" 

AR-15 Pistol Upper Receiver 

10.5" .300 Blackout 4150 CMV 1-8T Heavy Barrel

Premium 7" M-Lok Handguard

(Assembled or Unassembled)

If You Don't Have An AR-15 Pistol Yet, Now Is The Perfect Time To Build One. At This Price There's No Reason Not To Add One To Your Arsenal. This Pistol Upper Kit Once Assembled With Your Favorite Lower And Brace, Will Easily Fit Into Any Collection And Take Up Minimal Space.

This .300 Blackout Assembled Upper Offers Amazing Stopping Power And Accuracy Which Makes It The Perfect Option For An AR Pistol. We Have Felt That This Amazing Blend Of Attributes Made This Kit Adaptable In Its Use And Ability To Be Used Anywhere Under Every Circumstance.

Built On A Davidson Defense Forged From 7075-T6 Aluminum. This Stripped Upper Is Precision Machined To Mil-spec M16/M4 Specifications And Features M4 Feedramps.

This Upper Includes A 10.5" .300 Blackout From Gauntlet Arms. This Barrel Is Made From 4150 CMV And Has A Twist Rate Of 1-8. This Heavy Barrel Also Has A Thread Pitch Of 5/8x24.

Included Is A 2A Armament Premium 7" M-Lok Handguard. The Builder Series Offers A Vast Number Of 2A Armament Components That Have Been Made With The AR Builder In Mind. The Builder Series Offers High Quality Products At A Competitive Price .

This Rail Features A Newly Designed 6061 Aluminum Hard Anodized Barrel Nut And A Rugged Mounting System. Utilizing 3 Screws Allows Enhanced Rock Solid Lockup For Your Rail To Barrel Nut Interface. It Also Has Integrated QD Mounts In Both The Front And Rear. This Rail Features The Same Type III, Class 2 Hard Coat Anodizing As The Rest Of Our Products That Have A Durable And Aesthetically Pleasing Finish.

This Upper Features A USA Made Guntec Muzzle Compensator. This Muzzle Device Is Made From T6 Aluminum And Is Made With A New Micro Design. With An Anodized Black Finish, This Dual Purpose Unit Functions AS A Barrel Shroud And A Muzzle Compensator For 5/8x24.


Barrel MFG: Gauntlet Arms
Barrel: 10.5" .300 Blackout 4150 CMV Heavy Barrel
Twist Rate: 1-8T
Thread Pitch: 5/8x24
Gas System Length: Pistol
Upper: Davidson Defense Mil-Spec Upper Receiver
Handguard: 2A Armament Premium 7" M-Lok Handguard
Gas Block: .750 Low Profile Steel Gas Block
Gas Tube: Tactical Superiority Stainless Steel Pistol Gas Tube
Muzzle Brake: USA Made Guntec Muzzle Compensator
Forward Assist: Omega Mfg. AR-15 Forward Assist Assembly
Ejection Port Door: Omega Mfg. AR-15 Ejection Port Door, Rod And Spring
Upper Weight: 2lb 11oz

Please note: If the listing says "In-Stock" it means we have all of the items in stock. Our assembled upper receivers are made to order, please check this LINK to view our most up to date shipping status.


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