12-02-2011, 04:14 AM
Stick with a Grendel chamber. The other .264 barrels out there use a different type of chambering than the "Grendel" barrels. Some of them have issues chambering some types of factory ammo. Grendel chambers will accomodate all Grendel ammo and all .264 ammo currently available. Why put of with the issue that come with the .264 barrels out there. You won't be dissappointed if you go with a Grendel.
Most after market barrels don't use the standard front sights. The majority of the people that I know that use/build AR's prefer to use a low profile gas block and a free float handguard. There are all sorts of rail mounted front sights or gasblock mounted front sights that that provide the same sight picture. But, it's all up the the end user ...... what ever you prefer. You can purchase a site tower and drill and pin your own holes .... not something I would attempt.
Most after market barrels don't use the standard front sights. The majority of the people that I know that use/build AR's prefer to use a low profile gas block and a free float handguard. There are all sorts of rail mounted front sights or gasblock mounted front sights that that provide the same sight picture. But, it's all up the the end user ...... what ever you prefer. You can purchase a site tower and drill and pin your own holes .... not something I would attempt.