>>64081675
An A2-A4 pattern AR with a 20" barrel is almost exactly 1meter long.
Comparing his height to said rifle, I'd estimate him to be between 1.6-1.7M tall, so 5'3"-5'7"

There was also Barry from IV1888 who was confirmed as a 5'0" manlet by the cops when he got arrested.
Eric from IV1888 is only a few inches taller than Barry was.