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14.5" .308 Battle Rifle Pro Complete Upper - RCA Adjustable Gas Key

Our newest 14.5" "Battle Rifle" upper. Based off of the Aero M5 (DPMS High) platform combining all of the features you would expect from a FS Pro upper. Our 14.5" version comes with the RCA Adjustable Gas Key for tuning to your hearts desire, decent Aero handguards, NIB BCGs, and all of the quality assembly processes and unlimited lifetime warranty (first free rebarrel as well).



Default Muzzle Device is an Extented A2 Flash Hider

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


The Basics


14.5"Ballistic Advantage .308 1:10 Twist 4150 CMV Barrel, Atlas R-One 12.7"Rail, NIB .308/6.5c BCG, Billet DPMS High Profile Upper, & Mil-Spec Charging handle


Hand 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 - 14.5" .308

Twist - 1:10 

Material - 4150 CMV

Profile - Middleweight

Gas System - Carbine

Finish - Nitride

Thread Pitch - 5/8x24

Gas Port - .068


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. 


Bolt Carrier Group:

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


*All .308 BCGs come with RCA adjustable gas key. Tuned for a wide range of ammo out of the box. 



Manufacturer - Aero Precision 

Model -  R-One

Lengths - 12.7"

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:

Style- Billet DPMS High

Material - 7075 T6 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:

Type - Mil-Spec

Material - 7075 T6 Aluminum

Finish - Type 3 Hardcoat Anodized


Gas Block:

Manufacturer - Breek Arms

Material - 4140 Steel

Style - Low Profile

Size - .750"

Attachment Method - 2x Set Screws


Set screws are torqued to 30 IN-lbs and have Rockset 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

Material - Stainless Steel


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


Flash Hider:

Type - A2 Extended

Manufacturer - KAK

Thread Pitch - 5/8x24

Caliber - .30/7.62mm 

14.5" .308 Battle Rifle Pro Complete Upper - RCA Adjustable Gas Key

Out of Stock
  • 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. 

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