C Colvin New member Jan 10, 2012 #1 Since I have a monolithic upper receiver, are there any accessories like a piece of a handguard I can put on the rails to essentially replace two lines of rails with M4-like handguards?
Since I have a monolithic upper receiver, are there any accessories like a piece of a handguard I can put on the rails to essentially replace two lines of rails with M4-like handguards?
