Ballistic Advantage 9MM Modern Series 5.5" EPC Straight Barrel (1/2x28)
In stock
0.00079 
0.04112 
75.06000 
0.86330 
75.05625 
0.20207 
Ballistic Advantage 9MM Modern Series 5.5″ EPC Straight Barrel (1/2-28)
The Ballistic Advantage 9MM Modern Series 5.5″ EPC Straight Barrel is built for compact performance and precision, making it an excellent choice for AR9 pistol builds. Whether you’re assembling a PCC (Pistol Caliber Carbine) or a dedicated 9mm AR pistol, this barrel delivers outstanding durability and smooth feeding.
Expertly machined from 4150 Chrome Moly Vanadium (CMV) steel and finished with a QPQ Nitride coating, this barrel offers superior corrosion resistance and long-lasting performance. Modern Series barrels also feature QPQ Nitride finished M4 feed ramp extensions to enhance feeding reliability. Unlike traditional AR barrels, this model is configured for a blowback gas system, eliminating the need for a gas block or gas tube.
Need assistance in choosing the right barrel for your AR9 build?
Key Features & Compatibility:
- Caliber: 9mm – Optimized for PCCs and AR9 pistol builds.
- Designed for: Both Colt/RR and Glock-style AR builds.
- Upper Compatibility: Works with standard mil-spec AR uppers and dedicated 9mm upper receivers.
- Lower Receiver Requirements:
- Requires a unique magwell conversion (Colt/Rock River style) when using UZI magazines.
- Works with dedicated 9mm lowers for Glock® magazines.
- Blowback Operation: Functions without a gas block or gas tube, simplifying the build process.
- Threaded 1/2×28 x .400 Full Profile Threads: Provides better suppressor compatibility compared to 1/2×36.
- Integrated Feed Ramp & Barrel Extension: Ensures smooth feeding and chambering.
- True Barrel Length: The stated barrel length includes the integral barrel extension.
- Enhanced Feed Ramp: Improves reliability with various ammunition types.
Important Notes:
- A standard 1/2×28 flash hider will not have enough clearance for a 9mm round to pass.
- Before installing a muzzle device, always check clearance by ensuring a 9mm round drops freely through the bore.
Legal Considerations:
You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is prohibited, except when installed on a pistol configuration firearm.
Your Ballistic Advantage 9MM Modern Series 5.5" EPC Straight Barrel (1/2x28) is Guaranteed to Perform!
Ballistic Advantage is committed to providing products that meet or exceed the most discerning customers' expectations. Ballistic Advantage stands behind that commitment. From the moment you unwrap one of their barrels, as you configure it, and as you fire it on the range or in the field. They want you to experience the unique elegance and uncompromising quality crafted into every one of their barrels.
BA also stands behind its commitment to performance. All Ballistic Advantage barrels are guaranteed to give sub Minute of Angle (MOA) accuracy with match-grade ammunition.
If you are not completely satisfied with any of their barrels' form, finish, and fit, please first consult their Troubleshooting Guide. If your BA barrel is not performing at the high standard of sub-MOA accuracy, call one of their armorers at 407-739-7664. You may be requested to send the barrel to BA for inspection; they will either correct the problem, replace the barrel, or reimburse you for the purchase price of the barrel.
- BA DEFINES SUB MOA AS A GROUP SIZE OF 1 INCH OR UNDER AT 100 YARDS WITH A 3 SHOT MAGAZINE FED GROUP OR 5 SHOT SINGLE LOADED GROUP.
- THE CUSTOMER IS RESPONSIBLE FOR THE INITIAL RETURN SHIPPING COSTS OF THE BARREL. IF ANY DEFECTS ARE FOUND, BA WILL REIMBURSE THE SHIPPING COSTS AND EITHER REPLACE OR REFUND THE ORIGINAL PURCHASE PRICE OF THE BARREL.
Product Information
| Manufacturer | Ballistic Advantage |
|---|---|
| Platform | AR15, AR9, EPC-9 |
| Series | Modern |
| Caliber | 9mm |
| Length | 5.5" |
| Twist Rate | 1:10 |
| Gas System | Blowback |
| Material | 4150 Chrome Moly Vanadium |
| Finish | QPQ Nitride |
| Muzzle Thread | 1/2×28 |
| Made in USA | Yes |
| Weight | 14oz |
Do you need assistance in choosing the right barrel for the job?
We understand there are a lot of options when it comes to choosing the right barrel. One of the most frequently asked questions we get from customers is choosing between Stainless Steel or CMV. We think this article might help you decide what is best for you. What Type of Barrel Should I Choose?
We fully comply with all federal, state, and local laws regarding the sale of restricted products. We do not market or sell to prohibited jurisdictions, and any attempts to induce illegal activity, including by law enforcement or government agencies, will be rejected and may be reported. All orders are subject to legal verification, and those in violation will be canceled. By using this site, you confirm compliance with all applicable laws.
Arm or Ally is a stocking dealer for all Aero Precision, Faxon Firearms, Ballistic Advantage, HOLOSUN, Toolcraft, Elftmann Tactical, Timney, TriggerTech, HIPERFIRE and was named the #1 Overall E-Commerce Dealer for Aero Precision Products in 2020!
See our growing inventory of AR Parts, Parts for Glock and Reloading Components.
