MMC Arms Top Shelf "Mesmerize" AR-15 Featuring
An AR-15 Upper Receiver
16" Gauntlet Arms .450 Bushmaster 4150 CMV 1-24T Heavy Barrel
Premium 15" Unique AR Handguard
(Assembled or Unassembled)
This Build Is Made With Amazing All Top Shelf Quality Items. This Is An Upper Receiver Featuring A Gauntlet Arms Barrel, An AR-15 Upper Receiver Plus An Top Shelf Unique AR Handguard. You Can't Get Much Better Quality Than This In An Upper Receiver All For A Price That's Simply Lower Than Anywhere Else.
The .450 Bushmaster Is The One To Choose Over The Big 3 Big Bore AR Calibers .450 Bushmaster, 485 SOCOM Or Beowulf.
.450 Bushmaster Bullets Have Better Ballistics Than .458 Socom Bushmaster Ammo Is Cheaper Much Easier To Load Too. The Beowulf You Need To Take Out A Mortgage To Pay For Ammo So You Choose What Caliber Is Better?
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.
This Build Features A 16" .450 Bushmaster Barrel From Gauntlet Arms. This Barrel Is Made From 4150 CMV And Has A 1-24 Twist Rate. This Heavy Barrel Also Includes A Thread Pitch Of 5/8x32.
This Upper Features A Unique ARÃs "We The People" Handguard. The Handguard Features Unique AR's Signature Engraving Style In Their Exclusive "We The People" Design. Made From Anodized 6061 T6 Aluminum. This Handguard Allows You To Comfortably Grip Your Rifle In A Variety Of Shooting Positions And Securely Mount A Variety Of Accessories Utilizing Unique AR's Exclusive Attachment System.
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: Unique AR's We The People 15" Handguard
Gas Block: .875 Low Profile Steel Gas Block
Gas Tube: Tactical Superiority Stainless Steel Carbine Gas Tube
Muzzle Brake: KAK Industries 4 Prong Phantom Style Muzzle Brake
Forward Assist: Omega Mfg. AR-15 Forward Assist Assembly
Ejection Port Door: Omega Mfg. AR-15 Ejection Port Door, Rod And Spring
Upper Weight: 4lbs 4oz
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.