These are all attachments I could find from the Nerf series N-Strike Elite 2.0, I might not have found all of them, please contact me if I missed one. If an attachment is sold with a blaster, then the blaster's name will be included in brackets. These are not exactly in order of being released.
Nerf Echo Stock (Echo CS-10)
Nerf Echo Stock (Echo CS-10)
Nerf Echo Stock (Echo CS-10)
Nerf Echo Stock (Echo CS-10)
Nerf Phoenix Scope (Phoenix CS-6)
Nerf Phoenix Scope (Phoenix CS-6)
Nerf Phoenix Stock (Phoenix CS-10)
Nerf Phoenix Stock (Phoenix CS-10)
Nerf Phoenix Barrel (Phoenix CS-10)
Nerf Phoenix Barrel (Phoenix CS-10)
Nerf Eaglepoint Scope (Eaglepoint RD-8)
Nerf Eaglepoint Scope (Eaglepoint RD-8)
Nerf Eaglepoint Barrel (Eaglepoint RD-8)
Nerf Eaglepoint Barrel (Eaglepoint RD-8)
Nerf Spectre Stock (Spectre REV-5)
Nerf Spectre Stock (Spectre REV-5)
Nerf Spectre Stock (Spectre REV-5)
Nerf Spectre Stock (Spectre REV-5)
Nerf Lock 'n Load Stock (Lock 'n Load)
Nerf Lock 'n Load Stock (Lock 'n Load)
Nerf Lock 'n Load Barrel Grip (Lock 'n Load)
Nerf Lock 'n Load Barrel Grip (Lock 'n Load)
Nerf Lock 'n Load Muzzle (Lock 'n Load)
Nerf Lock 'n Load Muzzle (Lock 'n Load)
Note: Also the Elite Stryfe CQ-10 muzzle
Nerf Lock 'n Load Scope (Lock 'n Load)
Nerf Lock 'n Load Scope (Lock 'n Load)