Swordfish Rail System comes in two versions to be compatible with M4/AR and HK416 guns with a top rail. It is attached by using 2 or 3 hook attachment lugs provided, depending on where the hooks are located on the top rail of each paintball gun. Simple and easy attach and upgrade.
Rail Length: 9in, 10in, 11in, 12in, 13in, 14in, 15in, 16in, 17in, 18in, 19in, 20in
Front Block Length: 2.5in
Material: Machine aircraft aluminum
To select the length of the rail, measure your handguard and the top rail of your gun, get the rail closet to the total length of your total measurement.
Depending on your barrel length, you can install it to be recessed in the Swordfish block or extended out from the block.
Select the compatible AR15 Specs receiver or airsoft M4/AR or H4K16
Select Rail Length: 9in, 10in, 11in, 12in, 13in, 14in, 15in, 16in, 17in, 18in, 19in, 20in