Customs “Martian Mammoth”
Featuring Aero Precision M5 Upper
Ultra-Match 4150 CMV .308 WIN 1-10T Barrel
Build Your Own LR-308
Rifle For Less Than Anywhere Else On Earth. Higher Quality Than Other Rifles At
A Fraction Of The Cost. This Is A High-Quality Upper Receiver That You Can Take
To The Bank.
This Upper Features A
High-End M5 Upper Receiver From Aero Precision. Made Of 7075 T6 Aluminum &
Made To Exact Mil-Spec Aero Precision Is The Best Quality & Value Upper On
The Market Today.
.308 Win 18” 4150 CMV
Manganese Phosphate SOCOM Barrel From XX-Treme. This Barrel Will Shoot 1 MOA @
100 Yards Or Less. (Accuracy Testing Using Match Grade Ammo Avg Groups Of
.73-.74 Inch Below 1" MOA Was Achieved @ 100 Yd)
Omega Mfg. 19” M-Lok Handguard Allows You To Comfortably Grip Your Rifle Yet
Still Be Able To Mount A Variety Of Accessories. Made Of 6061 T6 Aerospace
Includes A Recoil
Technology Spiral Fluted .308 Sound Forwarder Directs Sound & Muzzle Blast
Away From The Shooter.
On The Aero Precision M5 Platform, Like The DPMS LR-308, This Platform Is
Compatible With All Manufactured Lowers Except For Armalite, Newer Bushmasters,
And Rock River Arms.
A List Of Compatible LR-308 Lowers Includes, But Is Not Limited To: Spikes
Tactical, Mega, DPMS, Aero Precision, KAC, Windham Weaponry, CORE, CMMG, Black
Rain, Christensen Arms, American precision, JP Enterprises, Larue, Les Baer,
Kaiser Mil Tech, Mega Arms, Noveske, Matrix, Ruger, Remington, Sig Sauer,
S&W, Sword Int., EDM, FD Defense, Detroit Gun Works, Salt Works, GA precision,
DRD Tactical, Iron Ridge, Noreen, Poly 80, And More.
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.
Barrel MFG: XX-Treme Barrel Company
Barrel: 18" .308 WIN 4150 CMV Manganese Phosphate
Twist Rate: 1-10T
Thread Pitch: 5/8x24
Gas System Length: Mid-Length
Upper: Aero Precision High Profile M5 Upper Receiver
Handguard: 19” Omega MFG. Slim M-Lok Handguard
Gas Block: .750 Low Profile Steel Gas Block
Gas Tube: Tactical Superiority Stainless Steel Mid-Length Gas Tube
Muzzle Brake: XX-Treme Defense Spiral Fluted .308 Sound Forwarder
Forward Assist: DPMS Forward Assist Assembly
Ejection Port Door: DPMS LR-308 Ejection Port Door, Rod & Spring