Stackable Ten-SpeedA(R) M4 / AR Mag Pouches use a single MOLLEminus(TM) column on each magazine pocket making it possible to create double stack mag pouches (i.e., mount pouches on top of pouches). They are available in black, coyote brown, ranger green and MultiCamA(R). Stackable MOLLE Mag Pouches by Blue Force Gear Stackable Ten-Speed M4 / AR Mag Pouches add additional capability to the legacy Ten-Speed design. A single MOLLEminus column on the front of each mag pocket makes it possible to double stack magazine pouches (pistol or rifle) or attach most other MOLLE accessories. Mag Pouches for M4, M16 and AR-style Magazines (Polymer or Metal) Ten-Speed mag pouches use high-retention elastic to securely hold AR magazines of various sizes. They work with both metal and polymer-based M16 and M4 mags and are sized around a STANAG M4 magazine. Ten-Speed mag pouches also hold various AR mags, such as Magpul's Gen 3 mag and other similar sized magazines. Innovative Mag Pouch Construction Stackable Ten-Speed Mag Pouches use the same military-grade elastic to create high-retention mag pouches that lay flat when not in use. In addition, the front of each pouch is reinforced by a single MOLLEminus column laser-cut from ULTRAcompA(R) high-performance laminate. This provides both increased abrasion resistance and the option to attach additional MOLLE mag pouches and accessories. Lightweight MOLLE Mag Pouches featuring Helium WhisperA(R) technology Stackable Ten-Speed Mag Pouches use Helium Whisper technology to create a MOLLE attachment system that is stronger and lighter than traditional MOLLE. The attachment straps and back panels of pouches are laser-cut from a single piece of ULTRAcomp high-performance laminate, significantly reducing the number of parts needed to achieve MOLLE compatibility and thereby reducing the weight of each pouch. Specifications Compatibility Holds M4 / AR Mags or M16 mags (polymer or metal) and similar sized items MOLLE Fields Single Mag Pouch: 3x2 Columns. Size Single: 3" x 6" Material ULTRAcompA(R) high-performance laminateMilitary grade Ten-SpeedA(R) elastic front As with all Blue Force Gear products, this is made with excellence in the USA, Blue Force Gear carries a limited lifetime warranty, and is Berry Compliant.