I am in the final stages of my first attempt to build an AR. The rifle is all together and ready to fire......but.......I have not yet installed the muzzle devise. I would like to fire the rifle before permenant attachment of devise which is not yet in my possession. I will be installing a Shrewd brake with full ports and have read where this type of brake could affect accuracy. I want to get a baseline before it goes on to see if there is an improvement or loss of accuracy. My question is.....is it "illegal" to test fire my rifle beforehand? I'm gonna try to upload a couple of pics of the completed rifle. Tell what you think of the build. Thanks
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