dwb1987
Active Member
Would it be optimal? No. When you go that short you run into reliability/durability concerns, and give up a lot of ballistics. 10.5 is the minimum Id suggest for 5.56 for serious purposes. And at 7.5" barrel you might as well just use FMJ.
That said I do have a 7.5 upper I built out of spare parts and put the most obnoxious muzzle brake I could find on it, the fireball and concussion is insane. I bring it out now and then for kicks but thats it.
That said I do have a 7.5 upper I built out of spare parts and put the most obnoxious muzzle brake I could find on it, the fireball and concussion is insane. I bring it out now and then for kicks but thats it.