MMC Arms "Zzyzzyxx" AR-15
Featuring Aero Precision Upper Receiver
16" .458 SOCOM 4150 CMV 1-14T Heavy Barrel
Premium 12" M-Lok Handguard
(Assembled or Unassembled)
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 Build Features An XX-Treme Barrel Co. Barrel Chambered In .458 SOCOM 16" Heavy Barrel Profile. Made In The USA From 4150 CMV With A Manganese Phosphate Finish, In A 1:14 Twist Then Cryo Treated Making This A Very High-Quality Barrel.
This Upper Includes A Davidson Defense 12" 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.
Including A 5/8x32 KAK Industry Compensator, This Muzzle Device Is Similar In Function And Size To An A2 Flash Hider. The Gas Ports Help Channel Gases And Therefore Reducing Muzzle Rise Enabling The Shooter To Get Back On Target Faster For Follow Up Shots. Made From 4140 CMV Steel In The USA With Manganese Phosphate Finish Made This A Robust And High-Quality Muzzle Device.
Barrel MFG: XX-Treme Barrel Company
Barrel: 16" .458 SOCOM 4150 CMV Heavy Barrel
Twist Rate: 1-14T
Thread Pitch: 5/8x32
Gas System Length: Carbine
Upper: Aero XL AR-15 Upper Receiver W/ Enlarged Ejection Port
Handguard: Premium Davidson Defense 12" M-Lok Handguard
Gas Block: .936 Low Profile Steel Gas Block
Gas Tube: Tactical Superiority Stainless Steel Carbine Gas Tube
Muzzle Brake: KAK Industry Compensator 4140 CMV Manganese Phosphate Finish
Forward Assist: DPMS AR-15 Forward Assist Assembly
Ejection Port Door: DPMS AR-15 Ejection Port Door, Rod And Spring
Upper Weight: 3lb 14oz
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.