Gunsmithing 300 black out w/ surefire muzzle brake

[rware91]

Hello,
I am looking a building a 300 black out, i am wanting to go with a real short barrel that would have a surefire muzzle brake on it ( so i can utilize the same suppressor for both this gun and my bolt action) Question 1- if the barrel length and the muzzle brake finish so short that my handguards extend further will this cause a problem, when i shoot with out the surefire suppressor installed?

question 2: if i have a stripped lower and am looking at assembling this entire build, what form and what paperwork do i need to get submitted to the ATF? if anyone can link information for building an SBR it would be extremely helpful.
****Note: I already have a trust that i will use for this.

Thanks
Ryan

 

[Hoser]

Re: 300 black out w/ surefire muzzle brake

Sure Fire cans have an attachment method that requires you to be able to grab the back end of the can. If it is inside the free float tube you wont be able to tighten/loosen it.

To SBR a lower you need a Form 1.

 

[rware91]

Re: 300 black out w/ surefire muzzle brake

thanks, this is exactly the kind of information i am looking for.