VG6 Epsilon 556 SL AR 15 Muzzle Brake – .223/5.56 NATO 1/2×28

SKU: APVG100025A

Click Here for Price
Out of Stock

Join the waitlist to be emailed when this product becomes available

Orders will Ship within 1 Business Day
Armorer's Wrench for AR-15 & Multi-Function Tool by AT3™

Armorer’s Wrench for AR-15 & Multi-Fuction Tool by AT3™


Birchwood Casey Shoot-N-C Target - Round Bullseye - 12" - 5 Targets

Birchwood Casey Shoot-N-C Target - Round Bullseye - 12" - 5 Targets


The Ideal Muzzle Brake For 14.5″ Rifle Builds

The VG6 Epsilon 556 SL Muzzle Brake is the ideal muzzle brake for 14.5″ rifle builds. It features an outside diameter of .745″ and can be pinned and welded to your barrel while still allowing full maintenance and removal of your gas block without having to remove the muzzle device.

The VG6 Epsilon 556 SL Muzzle Brake utilizes a new aggressive chamber design that improves gas flow and reduces felt recoil significantly. It also features deep channel cuts that greatly reduce the overall weight toward the front end of your build.

Slim Design But Not Slim Performance

The VG6 Epsilon 556 SL Muzzle Brake offers the same great performance they have grown to trust from VG6 Precision muzzle brakes. It has a slim design but it doesn’t mean it also has a slim performance. With the EPSILON 556SL, you have the optimal solution for a lightweight, legal (when pinned and welded) and flat shooting 14.5″ Rifle Build.

The CAGE Device is NOT compatible with the Epsilon 556SL


  • Made In America: Yes
  • Finish: Black Nitride
  • Platform: AR15
  • Weight(s): 1.6 oz
  • Other Features Length: 2.21″

Have Questions About this Product?

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

VG6 Warranty Information

If you are not entirely satisfied with your purchase, we’re here to help. Please read the guidelines below for our return policies and procedures.

General Policy

All items must be returned within 30 days and be in new, unused condition including all packaging contents. A 10% restocking fee applies to orders being returned to the original payment method. Original shipping charges are non-refundable and returnee is responsible for return shipping. We do not accept returns on used, blemished (purchased as BLEM), or custom engraved/laser etched items. Attempted returns on non-refundable items will be sent back at the shipper’s expense.

Exchanges & Store Credit

Orders being exchanged or returned to store credit will not be charged a restocking fee. To ensure your exchange is handled properly, please contact us at 253-272-8188.


If for any reason you have a warranty issue with one of our products, please contact us at 253-272-8188.

Please describe your situation, 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.

If you have images to send, please email them to

Damaged Items

In regards to claims dealing with damaged or blemished products, we ask that you create a Help Desk Ticket on your My Account page. If you don’t have an account with us, please go to the Contact Us page and fill out the form for review within 72 hours upon receiving the shipment.

If you have images to send, please email them to

Failed background check

There will be a 30% restocking fee on all lower receivers returned because of failed background checks.

Contact & Return Address

If you have any other questions or concerns, please contact us:

Aero Precision
2310 Commerce St
Tacoma, WA 98402
Call: 253-272-8188

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.

Customer Reviews

Based on 1 review
James D.
Slim design is great

Just what I needed pin/welded to a 14.5” barrel bringing it into NFA compliance but still able to slip the gas block off in the future if needed. The device looks good and the design is functional. The one draw back of the sleek design is no flats for a wrench, you have to use the included tool to attach your wrench to the muzzle prongs and that is a little awkward. AT3 transaction and shipping was first rate, thanks.

Thank you for taking the time to leave a review! We're glad to hear that the slim design of the VG6 Epsilon 556 SL muzzle brake worked well for your needs. We understand that the lack of flats for a wrench may be a bit inconvenient, but we're happy to hear that the included tool was helpful. We appreciate your kind words about our transaction and shipping process. Thank you for choosing AT3, and happy shooting!