4150 CMV barrel vs 4140 barrel on the sport
1:8 twist vs 1:9 twist
Mid length gas system vs. carbine gas
*Worthy of consideration*
BCM grip vs A2 grip
BCM stock vs standard M4 stock
BCM keymod hand guard with heat shields vs standard guards without heat shields
Worthy of consideration for a plastic handguard... not a big deal.
M16 BCG vs AR BCG
Upgraded trigger vs standard trigger
A smoother lousy GI trigger... yawn.
Apples to Apples... given the choice for the same dollar I'd rather have a Sport with a $200 trigger.
Last edited by ChattanoogaPhil; 11-02-2016 at 04:55 PM.