I want a more compact rifle.

So I've got a 16" because thats as low as I can go, well now that I'm a little more educated I suppose I'll build a shorter one and just sbr it later on but run a brace for now. Where I'm kind of stuck is what barrel length, 14.5 really isn't that much smaller than 16 so I feel like I need to go shorter. Tell my why I should or shouldn't go 11.5. Thanks in advance for any advice.

So I've got a 16" because thats as low as I can go, well now that I'm a little more educated I suppose I'll build a shorter one and just sbr it later on but run a brace for now. Where I'm kind of stuck is what barrel length, 14.5 really isn't that much smaller than 16 so I feel like I need to go shorter. Tell my why I should or shouldn't go 11.5. Thanks in advance for any advice.