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Davidson Defense "Masada" AR-15 Upper Receiver 16" .450 Bushmaster 4150 CMV 1-24T Heavy Barrel 15" M-Lok Handguard (Assembled or Unassembled)

Part Number: PI-R-450-27852
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On sale $679.99 $364.99
Retail Price:$679.99
Your Savings:$315.00(46%)
In Stock

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Davidson Defense "Masada" 

AR-15 Upper Receiver 

16" .450 Bushmaster 4150 CMV 1-24T Heavy Barrel 

Premium 15" M-Lok Handguard

(Assembled or Unassembled)

Caliber: This Rifle Upper Build Kit Is Chambered In .450 Bushmaster. The .450 Bushmaster Is A Do It All Hunting Round, And Specifically Has Become One Of The Go-To Rounds For Hog Hunting. It’s A Straight Walled, Center Fire Cartridge For Those States That Require That For Hunting. This Round Is Big, Loud, And Hits Hard. If That Sounds Like Your Style, Then This Upper Build Kit Is For You. Whether You Want To Use It For Hunting, Protection, Or Just Some Good Old Fashioned Fun At The Range, This Rifle Upper Build Kit Will Help Get You There Hassle Free, And At A Low Price.

Upper: This Upper Features A XL Upper Receiver. This Upper Receiver Features An Extended And Widened Ejection Port Door For Proper Ejection Of Larger Cartridges. Made From 7075 T6 Aluminum, This Upper Receiver Has A Type 3 Hard Black Anodizing.

Barrel: Included Is A Premium 16" .450 Bushmaster Barrel From Gauntlet Arms. Made From 4150 CMV With A Manganese Phosphate Finish, This Heavy Barrel Has A Thread Pitch Of 5/8x32 And A 1-24 Twist Rate.

Handguard: Included Is A Premium 15" M-Lok Handguard. This Handguard Allows You To Comfortably Grip Your Rifle In A Variety Of Shooting Positions And Securely Mount A Variety Of Accessories.

Muzzle Device: This Upper Features A KAK Industries Phantom Style Muzzle Device. This Device Features An Aggressive Profile With 4 Prongs In The Front To Minimize Flash And Dissipate Gasses More Effectively.


Barrel MFG: Gauntlet Arms
Barrel: 16" .450 Bushmaster 4150 CMV Heavy Barrel
Twist Rate: 1-24T
Thread Pitch: 5/8x32
Gas System Length: Carbine
Upper: AR-15 Upper Receiver With Enlarged Port Door
Handguard: Premium 15" M-Lok Handguard
Gas Block: .936 Low Profile Stainless Steel Gas Block
Gas Tube: Stainless Steel Carbine Length Gas Tube
Muzzle Device: KAK Industries 4 Prong Phantom Style Muzzle Brake
Forward Assist: Omega Mfg. Forward Assist Assembly
Ejection Port Door: Omega Mfg. AR-15 Ejection Port Door, Rod And
Upper Weight: 4lbs 2oz

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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