[Hugh]

Bob, It sounds to me like you have a magazine problem, not a hold open problem. If the toggle doesn't stay open after the last round, then the holdopen spring is working correctly and holding the holdopen down as it is supposed to. The mag follower button is supposed to push the holdopen up against the pressure of it's spring to catch the toggle and hold it open. From your description of misfeeding and not staying open after the last shot, I would suspect a weak mag spring. Try a magazine the works correctly in your other Luger, hopwever if the spring in the malfunctioning gun is stronger than the other gun, this may not prove anything! You can get replacement mag springs from Wolff. This usually solves a lot of Luger malfunctioning problems! I have noticed with some of the aftermarket holdopen springs that they will push the holdopen back as well as down and it will rub against the frame and not work up and down smoothly.