Straight barrels work well with both the M4 style handguards and Phantom handguards. They will be able to take an M4 front sight, or an integrated front sight! >>> This handguard package comes with front and rear locking caps. These caps can only be installed on straight barrels with external diameters of 7/8" or less. Comes with handguard , front and rear caps only, no barrel included.

Package Includes:

- handguard

- front and rear caps