My new raised front sight blocks are now released. Please note the geometry of the actual parts may differ slightly from the pics. They have been redesigned to reflect the factory raised front sight blocks that are attached with set screws. They will also allow use of my soon to be released bayonet lugs and M9 bayonets. This latest version also incorporates an indexing pin and spring to index my AK-74 Brake without need for muzzle nuts or thread locker.

These front sight blocks include a standard AK sight post, windage drum, indexing pin and spring as well as two set-screws and an allen wrench. Short one is designed to be used with the factory sights and the taller one is designed to work with my Press-On Upper Assembly with the AK rear sight block.

The pic on the left is the short Russian FSB and is designed to be used with the factory pistol sights. It clamps on with 2 screws on the bottom of the barrel. The pic in the center is the tall Russian FSB and is designed to be used with the taller AK adjustable rear sights. It clamps on with a set screw at the rear. The pic on the right shows both of my FSB's, one tall to be used with my adjustable AK rear sight system and one short to be used with the factory pistol sights. These attach just like the factory set screw model.

Installation: Slip the FSB over the muzzle to just behind the threaded portion of the barrel. Screw on muzzle brake until tight, then back off so it is indexed in the desired position. Insert index spring and pin in FSB and push FSB forward so it is tight to the brake and the indexing pin engages the notch in the brake. Align the FSB with rear sight and gas block sight and tighten the set screws. If it looks nice & straight, remove one set screw, apply loctite and re-tighten. Remove the other set screw, apply loctite and retighten.

These pics show my FSB installed with the AK-74 Brake I offer. It's a scaled version of a real AK-74 brake and threaded for M22x0.75 RH threads.