BA Swag

18" 5.56 SPR Rifle Length AR 15 Barrel w/ Ops 12, Modern Series

SKU: BABL556020M

Availability: In stock




This 5.56 chambered 18 inch Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.

This barrel features a longer .750” profile dimension necessary for proper installation of the OPS Inc 12th model collar and suppressor.

Additional Info

Length 18"
Material 4150 Chrome Moly Vanadium
Profile SPR
Finish QPQ Corrosion Resistant
Gas System Length Rifle
Gas Block Journal .750"
Twist Rate 1:7 inches
Muzzle 1/2x28 Threaded
Weight 41oz
Other Info No
Product Video


Excellent Barrel by BAReview by Godzproject1
Got this for my MK12 Mod 1 Clone and it’s solid and accurate! Runs 77 grain OTMK and it’s phenomenal! (Posted on 1/10/2019)
Excited and happy with this purchaseReview by James
I bought this barrel w/ pinned lo pro GB for my first AR-15 build. I wanted something CHF made of CVM with QPQ finish, but those that I found were pretty expensive. I found BA and their product line, and for the price of their barrels, I was more than willing to give up the CHF for this barrel. After a lot of shopping around, I have come to the conclusion that I will probably always look to BA first when I need a barrel. While purchasing this barrel, I came upon some customer service issues that Kyle at BA was able to resolve for me in a manner that exceeded my expectations.

I have not yet used this barrel in my build yet, but it came well packaged and looked great. I can't wait to put it all together. I was so happy with my purchase and experience with BA that less than I week after buying this barrel, I had already put in a second order for another, shorter barrel. Really looking forward to using these barrels and I am looking forward to doing further business with BA. (Posted on 12/4/2017)
Outstanding!Review by DONAVAN
I purchased this barrel from a third party without prior knowledge of who Ballistic Advantage was. I built two MK12's, one with this barrel, and one from the premium line. The original barrel used by the military was almost $500. When I received the barrel I was blown away by the finish and packaging. Very impressed. I installed the barrel a few days later. I was worried at first because the barrel didn't fit as tightly as I wanted into the upper receiver. However, this is a common thing to happen when using different manufactures of a barrel and upper. When I finally hit the range I was blown away! Barrel is more accurate than I could have wished for at more than half the cost! (Posted on 10/3/2017)

Write Your Own Review

Only registered users can write reviews. Please, log in or register

Shipping and Returns

Free Shipping

⇨ More info on Free Shipping.


It is our goal to ship all orders within 3-5 business days after the order is placed. However, due to seasonal demand and/or market fluctuation, shipping times may vary. Items will be delivered via the delivery method chosen at the time of purchase. If for some reason an item is not available, we will contact you directly as soon as possible to make arrangements for future delivery or provide you the option to receive a refund or credit on the item.

Priority Mail

Is the scheduled delivery day guaranteed? Priority Mail remains a non-guaranteed service.


If for any reason you have a warranty issue with one of our products, please visit Contact. Describe your situation, take some detailed photographs, and include your name and order number or transaction id. One of our technical specialists will then review your claim and contact you within 3-5 business days. For any returns other than warranty issues, a 10% restocking fee applies. All claims regarding cosmetically blemished or damaged items need to be submitted to Contact for review within 72 hours upon receiving the shipment.

Accuracy Guarantee

Guaranteed to Perform

We are committed to providing products that meet, or exceed, the expectations of our most discerning customers. We stand behind that commitment. From the moment you unwrap one of our barrels, as you configure it with your receivers and handguards, and as you fire it on the range or in the field, we want you to experience the unique elegance and uncompromising quality that we craft into every one of our barrels.

We also stand behind our commitment to performance. All Ballistic Advantage barrels are guaranteed to give sub Minute of Angle (MOA) accuracy with match grade ammunition.1

If you are not completely satisfied with the form, finish, and fit of any of our barrels, please visit Contact to discuss your concerns. If you find your BA barrel is not performing at the high standard of sub MOA accuracy, please first consult our Troubleshooting Guide on our website. If you need further assistance please visit Contact. Usually, our armorers are able to resolve any issues over the phone. If the issues are not resolved we will ask that the barrel be sent to us for inspection.2 We will either correct the problem or replace the barrel, or if the customer prefers, we will reimburse the purchase price of the barrel.

1 We define 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.

2 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.

You may also be interested in the following product(s)

Sub-MOA Guaranteed, American Made, and free shipping every day!

v: 1498