Overview The GoatGuns Diecast Mini Under Barrel Masterkey Shotgun is a 100% diecast metal under-barrel attachment that brings serious tactical character to your GoatGuns AR15 and M16 miniature models. Modeled after the iconic Masterkey shotgun system, this attachment requires a small installation but rewards collectors with one of the most distinctive AR upgrades available. Preloaded with 3 dummy shotgun shells and featuring a functional cycling action, this attachment also fits the GoatGuns M16A1 model when paired with the Grenadier handguard. Use the included screwdriver to mount and unlock a totally new dimension of customization for your AR display. Key Features Under-barrel Masterkey shotgun attachment 100% diecast metal construction Preloaded with 3 dummy shotgun shells Compatible with M16 and AR15 miniature barrels Cycle/eject dummy shells with screwdriver or toothpick Includes mounting bracket and screwdriver Performance Benefits Adds unique tactical character to AR builds Functional cycling shotgun shells Premium 100% diecast feel Authentic Masterkey styling Usage Notes Requires removal of front sling loop and hand-guards to install Smaller bracket included for M16 fitment Compatible with M16A1 when using Grenadier handguard NOT compatible with AR Drum Mag Does NOT fit short barrel system For display and collection purposes only Fitment GoatGuns Mini AR15 (with regular barrel) GoatGuns Mini M16 (with regular barrel) GoatGuns M16A1 (when using Grenadier handguard) NOT compatible with: short barrel, AR Drum Mag Technical Specs Length: 5.25" (13.3cm) Height: 1.5" (3.8cm) Material: 100% diecast metal Capacity: 3 dummy shotgun shells What's Included (1) Masterkey Shotgun Attachment (3) Dummy shotgun shells (preloaded) (1) Mounting bracket (with smaller M16-specific bracket) (1) Mounting screw and screwdriver Summary Iconic Masterkey shotgun under-attachment 100% diecast metal, preloaded shells Fits AR15 and M16 mini barrels Includes mounting hardware Distinctive AR build customization piece