Nerf's Modulus BarrelStrike can be used as a blaster or attachment: $9 (35% off)
Amazon.com: NERF Elite 2.0 Commander - 2 RD-6 Blasters, 24 Official Darts, 6-Dart Rotating Drum, Tactical Rails, Barrel and Stock Attachment Points : Toys & Games
Qiilu Silencer Barrel Extension Attachment Black for Nerf MOD Modify Toy, Extension Barrel for Nerf, Extension Barrel Silencer for Nerf | Walmart Canada
Outback Nerf: Quick Mod: Micro Front Rail Attachment
Amazon.com: Nerf E0786 Modulus Mediator Barrel Battle Toy : Toys & Games
Silenciador Barrel Extension Attachment Negro para Nerf MOD Modificar Juguete comprar a buen precio — entrega gratuita, reseñas reales con fotos — Joom
Nerf SharpFire Barrel Suppressor Attachment Extension Mod - Etsy España