Blade Tech Revolution AR-15/M4 Mag Vertical Pouch with Adjustable Sting Ray for Right Hand Mag Back. Blade-Tech"s Double Magazine Pouch comes with the adjustable ASR belt attachments this allows the pouch to be carried closer to your body, aiding you in overall concealment. When your magazine is inserted into your pouch you will have positive retention peace of mind knowing you mag is secure. Retention screws can be tightened or loosened to your personal preference. Our proprietary blend (secret formula) of polymers will provide you with a lifetime of performance.