This guiderod while making takedown easy causes the slide not to return to battery as it engages while shooting. The spring is locked into the rearward position and therefore not allowing the new round to be stripped from the magazine. I do not recommend this for any self defense or competition purposes as it renders the firearm unreliable. If you are just practicing or a range shooter and don’t mind failure to load I will work for you. You simply rack the slide to strip the new round. You can not use the slide lock as the slide is not being held back. If has no spring tension.