Worker MOD Tactical Black Picatinny Rail Mount Type with Screw could attach well on the Nerf Blaster tactical rail. This Picatinny rail allow tactical advance equipment on your blaster. Nerfer likes attach Scope, Touch, Sight or Sling on the rail just being Tactical.
 
Be careful to measure the length of the stock rail top of your blaster, no need worry the picatinny too long not fitting on, the nylon material itself is hard but still allow you to trim just by hand saw.