BA Swag

7.5" 5.56 Pistol Length AR 15 Barrel, Modern Series

SKU: BABL556001M

Availability: In stock

Regular Price: $115.00

Special Price - $92.00



This 5.56 chambered 7.5 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.

All NFA/ATF Rules Apply
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.

Additional Info

Length 7.5"
Material 4150 Chrome Moly Vanadium
Profile DRP
Finish QPQ Corrosion Resistant
Gas System Length Pistol
Gas Block Journal .750"
Twist Rate 1:7 inches
Muzzle 1/2x28 Threaded
Weight 17oz
Other Info No
Product Video


completely satisfiedReview by mark
This was the first time I 've done a barrel swap, and everything went off without a hitch. I bought the BA 7.5 " barrel with the melonite gas tube and pinned gas block. I installed the gas block, with the roll pins for the gas tube and block just like the way it supposed to go. The glossy jet black melonite gas tube looks great and is worth the extra couple bucks. Be prepared to have a set of barrel shims in the event you have to time the barrel nut to the handguard. Once I got to the range, my AR pistol shot flawlessly, and not overgassed. The ejected cases were all going to 4 o'clock about 6-8 feet back. I broke in the barrel according to the BA recommendations on their FAQ section. The barrel is as accurate as far as I can tell after all it's an AR pistol. This was a very gratifying learning experience. (Posted on 7/23/2019)
All good successfulReview by mark
I ordered the 7.5" 5.56 barrel with the pinned gas block and melonite gas tube for a barrel swap on my AR Pistol. This was my first ever barrel swap, but luckily you can find a lot of instructional videos on Youtube. The quality, fit and finish on the BA barrel was impeccable. The entire removal and replacement took me about an hour and a half. Everything came together perfectly, the gas block pin, the gas tube pin, and the barrel and handgaurd. I just came back from the range with about 100 rounds and everything works flawlessly. Plinking steel at 100 yds no problem. Great feeling of satisfaction. Just Do It (Posted on 7/19/2019)
Super Accurate!Review by Steve
Who says that a 7.5" barrel isn't accurate?? I was plinking a 12x12 steel plate at 300 yards with only a red dot optic and cheap big box store Federal .223 ammo. I can't be more thrilled! This is a great prouduct and absolutely worth every penny. (Posted on 1/20/2019)
Awesome barrelReview by NaKwai
This barrel is unusually surprising simply because of the price tag compared to the quality. I have some very high end barrels and decided to give BA a try. I’m shooting .5 inch groups at 50 yards effortlessly. I pairs it with a BA gas block and gas tube and I couldn’t be more pleased. A friend and I did our builds at the same time and he chose a barrel from Spikes Tactical that was twice the price. In our 3 range trips, he has yet to shoot better groups with his gun. We even switched, an he shot better groups with with my rifle. BA did an amazing job. I will be purchasing another barrel from them and am coming moletely cinfident with that decision! (Posted on 9/4/2018)

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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.

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

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