You can build one, but you wont save much. The only reason to build a BCM upper is if they don't offer a configuration you are looking for. Pic a lower you like and pin a complete upper to it. No need to buy a whole rifle unless you just want an all factory gun.
Not all my ARs are BCM, but my go to rifle is a BCM light weight, mid length upper, with BCM bolt, MOE handguards, one lil rail at 10 o clock for a light. RRA lower with a gieselle SSA trigger. Just a KISS carbine. It took 7 years and thousands of dollars to come to this setup. I wish I knew back then what I know now.
Unless you are going to hang light, laser, PVS, VFG, tactical spork, MP3 player etc, skip the rails. Spend the extra money on ammo. Shoot a case through it then decide what you need/want. You can always add rails and accesories later and build exactly what you need to shoot well.
Accuracy is better than I can shoot. But its only has a 3.5 power TA-33 ACOG. Not exactly a percision optic. I can hit man sized paper targets out to 300 which is the farthest I have had to shoot.
This is not a stab at rails. My replacement upper for the Spikes mentioned above is going to be 11.5" with 10" rails. And honestly a decked out suppressed SBR needs rails.....to look cool.
I will add I have a Spikes upper with a 20" diamond fluted YHM barrel that has given me no problems and is scary accurate. It is my favorite rifle range gun. The only thing Spikes on it is the upper itself.
Sorry for rambling but I hope it helps.
Not all my ARs are BCM, but my go to rifle is a BCM light weight, mid length upper, with BCM bolt, MOE handguards, one lil rail at 10 o clock for a light. RRA lower with a gieselle SSA trigger. Just a KISS carbine. It took 7 years and thousands of dollars to come to this setup. I wish I knew back then what I know now.
Unless you are going to hang light, laser, PVS, VFG, tactical spork, MP3 player etc, skip the rails. Spend the extra money on ammo. Shoot a case through it then decide what you need/want. You can always add rails and accesories later and build exactly what you need to shoot well.
Accuracy is better than I can shoot. But its only has a 3.5 power TA-33 ACOG. Not exactly a percision optic. I can hit man sized paper targets out to 300 which is the farthest I have had to shoot.
This is not a stab at rails. My replacement upper for the Spikes mentioned above is going to be 11.5" with 10" rails. And honestly a decked out suppressed SBR needs rails.....to look cool.
I will add I have a Spikes upper with a 20" diamond fluted YHM barrel that has given me no problems and is scary accurate. It is my favorite rifle range gun. The only thing Spikes on it is the upper itself.
Sorry for rambling but I hope it helps.