BCM Gunfighter Vertical Grip (Short) - Black Pods The Eclipse GX bag is

The Eclipse GX bag is the only piece of luggage you'll ever need

virtually instantaneous recharge

even in straight semi-auto

In Techt's testing they found that changing to a different spring (lighter spring) caused issues with the cyclone feed loading correctly

BCM Gunfighter Vertical Grip (Short) - Black Pods The Eclipse GX bag isFeatures Low profile length for increased mobility and decreased snag factor The forward angle increases the rigidity of the forearm, while providing a more natural wrist angle Can be mounted in reverse angle to increase control when grabbing handguard and grip Flat sides with aggressive texture give better yaw control to the shooter during firing and non firing manipulations Aggressive texture and storage volume combined with modular design to allow