I have a SW MP-15 sport lower(older model). Right now I have my BCM middy upper sitting on top of it. It's my go to rifle (range, crap hit the fan, home defense). Just a joy to shoot. 300 rounds at least with no issues.
My back up rifle is a Colt 6920. Haven't shot it yet, but I'm sure it's gtg.
I'm a little skeptical of the sport lower. I don't know if it is mil-spec or if that even matters. I'm wondering if I should keep my primary set up as is , switch to the Colt as my primary, or if I should slap the BCM upper on the Colt lower and have a sweet Frankenstein rifle. What say you?
My back up rifle is a Colt 6920. Haven't shot it yet, but I'm sure it's gtg.
I'm a little skeptical of the sport lower. I don't know if it is mil-spec or if that even matters. I'm wondering if I should keep my primary set up as is , switch to the Colt as my primary, or if I should slap the BCM upper on the Colt lower and have a sweet Frankenstein rifle. What say you?