MMC Arms "Terraria" AR-15 Featuring
Aero Precision Upper Receiver
18" 12.7x42 4150 CMV 1-20T Heavy Barrel
Premium 15" M-Lok Handguard
(Assembled or Unassembled)
It Has Been Said That Great Things Come In Small Packages, But It Can Be Argued That Even Better Things Come In Even Larger Packages. Well, The 12.7x42mm Caliber Aims To Argue That Point Well. The Intent Of Designing This Round Was To Provide Superior Stopping Power At Short To Medium Range Over The 5.56 NATO Round. You Could Say That They Hit The Target With This Round. Compatible With Ammunition, The 12.7x42mm Packs A Heavy Punch. Being The Largest And Heaviest Round Compatible With The AR-15 Platform, It Will Take Down Any Large Game Found In North America As Well As Taking Vehicles Out Of Play.
This Kit Features Aero Precision XL Engraved Upper Receiver W/ An Enlarged Ejection Port To Reliably Cycle The Larger Shell Casings. Upper Receiver Does Have "XL" Laser Engraved On Top Rail. Forged From 7075-T6 Aluminum, This Stripped Upper Is Precision Machined To Mil-Spec M16/M4 Specifications And Features M4 Feedramps. Match This Upper With One Of Our AR-15 Lower Receivers For A Solid And Dependable Fit.
This Upper Features An 18" 12.7x42 Barrel From XX-Treme Barrel Company. Made From 4150 CMV With A Phosphate Finish. This Heavy Barrel Also Has A 1-20 Twist Rate And A Thread Pitch Of 49/64x20.
This Upper Includes A Davidson Defense 15" M-Lok Handguard. This Freefloating Handguard Allows You To Comfortably Grip Your Rifle In A Variety Of Shooting Positions And Securely Mount A Variety Of Accessories.
This Upper Features A Recoil Technologies 12.7X42 ( cal) Spiral Cut Flash Hider. This Muzzle Device Is Easy To Install And Fits Standard 49/64x20 Thread Barrels (Fits 12.7x42 or Cal Barrels). Made From 4150 CMV With A QPQ Nitride Finish, This Device Is Designed To Reduce Muzzle Flash.
Barrel MFG: XX-Treme Barrel Company
Barrel: 18" 12.7x42 4150 CMV Heavy Barrel
Twist Rate: 1-20T
Thread Pitch: 49/64x20
Gas System Length: Mid-Length
Upper: Aero XL AR-15 Upper Receiver W/ Enlarged Ejection Port
Handguard: Premium Davidson Defense 15" M-Lok Handguard
Gas Block: .936 Low Profile Steel Gas Block
Gas Tube: Tactical Superiority Stainless Steel Mid-Length Gas Tube
Muzzle Brake: Recoil Technologies Spiral Cut Flash Hider 49/64x20
Forward Assist: Omega Mfg. AR-15 Forward Assist Assembly
Ejection Port Door: Omega Mfg. AR-15 Ejection Port Door, Rod And Spring
Upper Weight: 4lb 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.