Carbine vs. Mid-length for occasional shooter
I don't shoot my AR as much as I'd like, maybe once of twice a month (~200 rounds each time). My AR started life as M&P15MOE, with a carbine gas system & 1/9 twist. I read about advantages of the mid-length system, but would I benefit from it? I can probably sell current barrel to offset the cost and go with a BCM mid length barrel with 1/7 twist.
My rifle is all apart as I install TRX Extreme rail, so it would be no big deal to put in a different barrel at this time.