Davidson Defense "Ayuthaya"
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. Itâ€™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: This Upper Features 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 Build Comes With a Helius Tactical 1776 Series 5/8x32 MMC Arms Edition Black Oxide Finish.
Machined From 416R Stainless Steel And Finished With Black Oxide, The 1776 Large Bore Muzzle Device Is Designed To Work With .450 Bushmaster, .458 SOCOM, And Other Large Bore Rifles. This Muzzle Brake Helps Reduce Felt Recoil And Muzzle Lift By 30%, Which When Dealing With Large Bore Calibers Is Almost Essential. This Brake Is Engineered To Improve Accuracy And By Dispersing The Gases, Reducing The Barrel Climbing This Enables The Shooter To Get Back On Target Faster, Which Is An Added Benefit When Hunting To Make Sure You Can Take Home The Prized Beast And Not Settle For Second Place.
The MMC Arms Edition Features The Helius Tactical Laser Engraved American Flag Along With Our Very One MMC Armory Logo.
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: Helius Tactical 1776 Muzzle Brake MMC Arms Edition 416R Stainless Black Oxide
Forward Assist: Omega Mfg. Forward Assist Assembly
Ejection Port Door: Omega Mfg. AR-15 Ejection Port Door, Rod And Spring
Upper Weight: 4lbs 3oz
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.