Ar build ????

[browtines]

I just got finished building my first ever lower unit. Used a LRB milled lower, coffin arms lower part kit, dropped a cedar creek two stage match trigger in it. I used a pistol buffer tube, and thinking about a 5.5 or 7.5 inch barrel. For the ballistic peeps on here, what does the 2 inch shorter barrel do to my ballistics? Or am I crazy for even asking being the barrel is so short any way?

 

[W C]

I guessing that you have an approved ATF Form 1 for the short barrel build or the reciever as manufactured was registered as a pistol.

 

[browtines]

The pistol option is correct.... No form 1 for the pistol....

 

[7-08 fan]

I would say 5.5 and 7.5 it probably would'nt matter much anyway.