This is the newest model Saiga 12 gauge shotgun. The IZH-109BHO Model comes with automatic bolt hold open after last round fired. Check it out at K-VAR. K-Var Corp. This is not the common models that were $500. This model was just released in this country by K_VAR for $679.95. It has a button right behind the mag release that will lock the bolt open at any time. It has another button where the old style bolt latch was that will release the bolt when pushed! So now you have two ways to release the bolt. Hit the button or pull back on the bolt. I have not seen another one of these available anywhere.