Complete M4 Carbine Hand Guard With Front Sight Attachment Type:1-inch Barrel Mount If you are shooting round

If you are shooting round balls and First Strike/Shaped Projectile

This marker is the highest performance marker MCS has in our arsenal

43 caliber

It is not just look good

This version is the Glock 17 Gen4 shooting 6mm marking or non-marking projectile

Complete M4 Carbine Hand Guard With Front Sight Attachment Type:1-inch Barrel Mount If you are shooting roundComplete M4 Carbine Handguard With Front Sight (Black). This kit works with barrel that have 1" base section and 7 8" front section. Comes with: MILSPEC Delta Ring Pack with Barrel Nut or 1 Inch Barrel Mount ( Select Option) Handguard Handguard Front Cap 7 8 Front Sight 7 8