This AK gas tube is for the 7.62x39 and .223 Saiga rifles. Installation of this gas tube allows your rifle to accept regular unmodified AK upper handguards. The tubes I have been getting lately are the vented type with the ports up front, but down the road they may not.

These pics show the gas tube installed. Also, with the use of an AK lower handguard retainer (bolt-on AKBOR1, or press-on AKPOR1) , it's a great way to add U.S. made handguards for one additional compliance part. Install/Removal is the same as the factory gas tube. You remove the bolt carrier, release the rear sight block locking lever, remove the tube, insert the new tube, lock the lever, reassemble the rifle.