This handguard secures to the AAPs original outer barrel, and is fixed by 2 M3*8mm grub screws (included).
It provides a great aesthetic boost to the AAP, whilst adding utility via the picatinny rails. I heard you weren't actually allowed to use one of these pistols without something hanging off it!
Care should be taken when securing the handguard to not damage the long picatinny rail section. Front sight post must be removed.