We’re at the dawn of another month, so it’s time for another giveaway. While going through a box-o-parts, I found this guy, a SureFire ProComp 5.56 Muzzle Brake. If you are building a new upper receiver for your M-4 / AR-15 or just want to give this SureFire a try, be sure and enter!
In case you aren’t sure what this SureFire muzzle brake does… …the box tells you.
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