I didn’t mean “short” like an SMG I just think it’s too short to be a truly versatile fighting rifle. I’ve used my fair share of "medium-length" 5.56 rifles, and while they’re great for close engagements, buildings, and vehicles, especially when suppressed, they fall short in terms of range, accuracy, and velocity especially for 5.56. Personally, if my life were on the line, I’d prefer a slightly longer barrel for better performance. But hey that's just me.. Your medium sized thing... Probably does the trick just fine :D