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and has a 3 (Nike Style) fin design
Motor Retention: MR-1
The Magnum features a 17" slotted booster
this 4-inch LOC-IV rocket kit now sports a 23" booster section and 11" payload for an optional dual deployment setup with a 4" Dia Avionics Bay
Vinyl decal now included
LOC Precision - 3.9" Tube Coupler Stiffener MicroMaxx and has a 3 (Nike3. 9" Tube Coupler Stiffener "Stiffy" heavy duty tube coupler stiffeners feature a deep spiral groove for maximum epoxy adhesion. These super heavy duty wall stiffeners are designed to be epoxied inside of standard tube couplers to greatly increase lateral strength. Snapping off a payload at the joint under high speed stress (as occurs when flying at or near Mach speeds) is not a worry when you fly with a Stiffy. NOTE: Stiffys are not compatible with