Big Bore Black Seventeen Seventy Six 5/8x32

Helius Tactical
(12 reviews)
Current Stock:
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Our most patriotic brake, designed with quick American manufacturing in mind.  

All devices come standard with a free steel crush washer, but other locking options can be purchased to fit the build you're after.


MilSpec 416 Stainless, from a local supplier

3.3 Ounces

2.5" Length

.85" O.D.

.5" Thru hole, to fit a large variety of calibers. 

3 x .125" Comp holes, for vertical recoil reduction.

6 x .25" Brake ports, terminating slightly below the device's center-line to prevent prone dust up and maximize recoil reduction.


  • 5
    1776 5/8 X 32

    Posted by hogman on Sep 26th 2023

    Love it. Got them ( 1776 ) on 3 of my AR platform rifles. Works great @ a great price!! FAST SHIPPING if item in stock.....

  • 5
    Helius Tactical is now my sole supplier for breaks/compensators

    Posted by Warren County Arsenal on Jun 17th 2023

    What do you get when you have a product that is literally the same as more expensive comp's at half the price? Best Value! these things rock! When building my custom rifles I won't run anything else because my customers want 1) performance (they rock) and 2) value and these perform not only when I'm building, but when my customers are practicing/competing.

  • 5
    Great brake!

    Posted by Matt on Apr 12th 2023

    This brake works amazingly for 450 bushmaster ARs. I have used it for my personal gun and several others I’ve built for clients. It is a bit loud, but it will substantially reduce recoil. I have tried many different 450 BM brakes, from tankers to flash hiders… you will not find a better brake for the money than this one. I’ve only found one that worked marginally better, but it was upwards of $180. If you’re on the fence, just buy it. You will be grateful you did later.

  • 5
    1776 big bore brake

    Posted by Aaron on Jan 4th 2023

    Excellent product, excellent value. This is my second brake of this type, I removed my factory brake and tested with only a thread protector. Installing this brake really tamed down my .450 bushmaster. Should the need arise I will not hesitate to buy another one. Big bonus - finding a brake with 5/8x32 thread pitch is difficult but finding one that works this well is awesome!

  • 5
    Big bore black 1776

    Posted by Troy Krueger on Nov 1st 2022

    This is the second one I purchased The fit and finish is great. They work perfect on my rifles. Will buy more in the future.

  • 5
    1776 big bore black

    Posted by Troy Krueger on Oct 24th 2022

    Very nice muzzle device. Best customer service anywhere. Product worked great

  • 5
    Muzzle brake

    Posted by Wayde poppe on Sep 25th 2022

    Love it! Significantly reduced recoil and looks way better!

  • 5

    Posted by Robert on Jun 14th 2022

    Item was shipped fast. fit and finish are very good and very effective brake. I am glad I found they site and the product.

  • 5
    450 Bushmaster 1776 muzzle brake

    Posted by Texas Hog Slayer on May 26th 2022

    Excellent muzzle brake for less than $20.