Too bad the SBI upper has a pic rail that doesn’t like up with the rail on a handguard. Forget their fear of a standard magwell, the upper has a massive design flaw.
I understand they had to make it taller to fit QD optic mounts, but I think it was a pretty big miss as most people don’t have QD mounts, plus there was a work around to make those optics work.
Hopefully crusader arms can release this lower and compatible upper as a builder set for those who want a 180 upgrade
I understand they had to make it taller to fit QD optic mounts, but I think it was a pretty big miss as most people don’t have QD mounts, plus there was a work around to make those optics work.
Hopefully crusader arms can release this lower and compatible upper as a builder set for those who want a 180 upgrade