Battle Rifle Pro - 12.5" & 16" .308 Complete Upper - Pinned Adjustable Gas Block

Finally, here are our .308 big boi uppers (6.5 creed coming soon). Based off of the Aero M5 (DPMS High) platform combining all of the features you would expect from a FS Pro upper. 12.5" &16" versions, adjustable pinned gas blocks, excellent Aero handguards, Toolcraft NIB BCGs, and all of the quality assembly processes and unlimited lifetime warranty (first free rebarrel as well).


With the Breek Arms Adjustable gas blocks both versions can run any ammo suppressed or unsuppressed. You can make them shoot very soft, or open it up for your surplus ammo.


*Any Muzzle Device Available Upon Request At Dealer Cost (No Markup)


The Basics


12.5" or 16" Ballistic Advantage .308 1:10 Twist 4150 CMV Barrel, Atlas R-One 12.7" or S-One 15" Mlock Handguard, Toolcraft NIB .308/6.5c BCG, Aero Precision M5 Upper, & Charging handle


Pinned Adjustable Gas Block, Lapped Upper Receiver, Bedded Barrel, Every component is hand fitted and tested prior to assembly, test firing, and ultimately shipping. 


The Specifics



Manufacturer - Ballistic Advantage

Length/Chamber - 12.5" & 16" .308

Twist - 1:10 

Material - 4150 CMV

Profile - Middleweight

Gas System - Carbine (12.5") -  Mid-Length (16")

Finish - Nitride

Thread Pitch - 5/8x24

Gas Port - .066 - .068

*Pinned Adjustable Gas Block*

1st Rebarrel - FREE


All NFA/ATF Rules Apply


Barrel nut is sequentially torqued down to 50 FT-lbs. Starting at 25, then 35, and then finally 50 FT-lbs to ensure proper mating of the threads. 


Barrel is also bedded to the upper receiver with an expanding/hardening compound to ensure perfect fit and reliable accuracy. 


If you legit burn out a barrel, like 10,000 -25,000 rounds, and the barrel becomes inaccurate I will rebarrel it for you for free. Good luck.


Bolt Carrier Group:

Manufacturer - Toolcraft

Bolt Material - 9310 Alloy

Carrier Material - 8620 Alloy

Gas Key Material - 4130 Alloy

Profile - DPMS

Finish - NIB

Gas Key Screws - Grade 8

Forward Assist Cuts

Mil-Spec Firing Pin (Hard Chrome Coated)

Viton O-Ring Enhanced Extraction



Manufacturer - Aero Precision 

Model - S-One & R-One

Lengths - 12.7" & 15"

Material - 6061 T6 Aluminum

Finish - Hard Coat Black Anodization

Mounting Platform - Mlock

Barrel Nut - Steel


Barrel nut torqued to 50 FT-lbs

Taper Lock torqued to 30 IN-lbs with blue Loctite


We apply a Permatex Anti-Seize solution to the receiver extension before installing the barrel nut to ensure they do not lock up over many years of hard use. 


Upper Receiver:

Manufacturer - Aero 

Style- M5 (DPMS High)

Material - 7075 T6 Aluminum

Machined from Forged Aluminum

Finish - Type 3 Hardcoat Anodized Black

Standard Dust Cover

M4 Feed Ramps

T-Marked, if you care...


Uppers are lapped to ensure the truest connection between the upper and barrel for maximum possible accuracy.


Charging Handle:

Manufacturer - Aero Precision

Type - Mil-Spec

Material - 7075 T6 Aluminum

Finish - Type 3 Hardcoat Anodized


Gas Block:

Manufacturer - Breek Arms

Material - 4140 Steel

Style - Low Profile + Adjustable

Size - .750"

Attachment Method - 2x Set Screws + Steel Roll Pin


Fully Adjustable for any ammo or suppressor combo. 


Set screws are torqued to 30 IN-lbs and have High-Temp Permatex 272 threadlocker applied for extra security.


*Please contact me before attempting removal of the Gas Block. These are not meant to be tampered with. 


Gas Tube:

Length - Carbine & Mid Length

Material - Stainless Steel


*** Any flash hider/ muzzle brake on the market can be substituted at dealer cost on your upper ***


Flash Hider:

Type - A2

Manufacturer - KAK

Thread Pitch - 5/8x24

Caliber - .30/7.62mm 


The Build Process:


Every upper is assembled by me, one at a time. Every piece is hand fit, barrels to the uppers, gas blocks to the barrels, gas tubes to gas blocks, handguards, roll pins, You get the picture. What all that means is that you get an upper that you can depend on and will hold up to years of hard use. 

Battle Rifle Pro - 12.5" & 16" .308 Complete Upper - Pinned Adjustable Gas Block

  • These are assembled by me by hand as well as transported back and forth from the range from test firing. Becuase of the handling of the uppers there will be some very minor cosmetic blemishes. If you are looking for a showroom finish, please look elsewhere. I expect my uppers to be used harshly and to handle the abuse. Any issues with function will be immediately addressed and remedied to the satasfaction of the customer.