Amazon.com: Toy M4 Barrel Extension for Nerf Models with an Interchangeable Barrel Compatible (Orange) : Everything Else
Elite 2.0 Echo CS-10 Blaster 24 Official Darts 10-Dart Clip Removable Stock and Barrel Extension From Nerf Blue And Orange - 27x12.5x2.63 cm - E9533 - Famjoy