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Davidson Defense "Isoptera" AR-15 Upper Receiver 16.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 16.5" KeyMod Handguard (Assembled or Unassembled)

Part Number: PI-RK-556-34113
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On sale $1,064.99 $499.99
Retail Price:$1,064.99
Your Savings:$565.00(53%)
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Davidson Defense "Isoptera" 

AR-15 Upper Receiver 

16.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 

Premium 16.5" KeyMod Handguard

(Includes Everything Minus Lower)

(Assembled or Unassembled)

This Upper Features A Back Diamond Series AR-15 Billet Upper Receiver. This Upper Receiver Does Not Have A Forward Assist, However It Does Still Retain The Dust Door Cover.

The Scientists And Engineers Have Been Hard At Work In The Workshop And Laboratory Creating A Barrel That Is Out Of This World. The End Result Of This Brain Trust Is A Barrel Brand Simply Known As Mercury Precision. Mercury Precision Barrels Are Machined From F.J. Feddersen Match Grade Blanks That Have Been Button Cut To Very Space Grade Specifications, The End Result Being A Very High End Product. The Goal With Mercury Precision Was To Create A High End Barrel That Does Not Require A Space Travel Budget To Afford.

This Mercury Precision "Satellite" Barrel Is 16.5" Long And Is Made From 4150 CMV And Has A High Quality QPQ Black Nitride Finish. This Treatment Increases The Barrel's Hardness Significantly And Makes It Extremely Corrosion Resistant. This Barrel Comes With A 1:7 Twist Rate, Features A 1/2x28 Thread Pitch, And Is Has A Mid-Length Gas System. This Satellite Barrel Has A Government Profile Making It Heavy Enough To Be Stable On Its Target, But Light Enough To Be Carried Around.

Included Is A Premium 16.5" KeyMod Handguard From Lakota Ops. This Handguard Allows You To Comfortably Grip Your Rifle In A Variety Of Shooting Positions And Securely Mount A Variety Of Accessories.

This Upper Features The Recoil Technologies "Circlet" Muzzle Device. This Slim Flash Can Is Made In The USA And Has A 1/2x28 Thread Pitch. This Device Was Designed To Thrust The Muzzle Gasses And Muzzle Flash Forward And Away From The Shooter.

This Kit Also Includes A 5.56 NATO Slabside Complete BCG. Made Of 9310 Steel Then Nitride Finished At The World Class Facility H&M Then MPI And HPT Inspected For Extreme Safety. This Is One Of The Highest Quality BCGs Made.

Also Including An Omega Manufacturing Charging Handle. This Charging Handle Is Manufactured And Assembled By Omega Manufacturing Inc.

Included Is A Davidson Defense AR-15 'Genesis' Stock. Davidson Defense Encountered A Dilemma Of Not Being Able To Find Good And Affordable Stocks On The Market, So They Set Out To Make Their Own. This Is Why This Stock Earned The Name "Genesis." This Stock Boasts A Reinforced Minimalist And Is Constructed From A New Proprietary Polymer Blend And It Was Designed And Engineered To Be Extremely Lightweight And Impact-Resistant Without Compromising Strength And Durability.

Davidson Defense Also Engineered A System That Will Accommodate A Wider Range Of Dimensions That Claim To Be Mil-Spec And Achieve An Ideal, Nearly Custom Fit. This Was Achieved Through Internal "Fitment Nubs" That Are Designed To Conform To Create A Snug Fit On Your Specific Buffer Tube Resulting In A Secure Buffer Stock Assembly That Does Not Shake Or Rattle.

A KAK Industries Ar-15 Mil-spec Lower Parts Kit Is Also Included. It Includes All The Small Parts Needed To Complete Your Lower.


Barrel MFG: Mercury Precision
Barrel: 16.5" 5.56 NATO 4150 QPQ Nitride Government Profile Barrel
Twist Rate: 1-7T
Thread Pitch: 1/2X28
Gas System Length: Mid-Length
Upper: AR-15 Black Diamond Upper Receiver
Handguard: Premium Lakota Ops 16.5" KeyMod Handguard
Gas Block: .750 Low Profile Steel Gas Block
Gas Tube: Stainless Steel Mid-Length Gas Tube
Muzzle Device: Recoil Technologies 1/2x28 "Circlet" Slim Flash Can
Ejection Port Door: Omega Mfg. AR-15 Ejection Port Door, Rod And Spring
BCG: Davidson Defense AR-15 Slabside
Charging Handle: Omega Manufacturing Mil-Spec AR-15 Charging Handle
Stock Kit: Davidson Defense AR-15 'Genesis' Stock
LPK: KAK Industries Complete Mil-Spec Lower Parts Kit
Upper Weight: 

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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