Posted: 11/21/2012 11:23:53 AM EDT
From the Mega Arms Website:
Any handguard with a barrel nut designed to fit the Knight SR25 or DPMS will fit the MATEN upper. The MATEN shares a common rail height with the SR25, DPMS High and the Armalite AR10. The necessary cuts have also been included on the upper to use a Samson handguard.