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Amazon.com: NERF Rival Knockout XX-100 Blaster - Round Storage, 90 FPS Velocity, Breech Load - Includes 2 Official Rival Rounds - Team Red : Toys & Games
Brass breech Nerf Rival Knockout mod! My second finished brass knockout build much cleaner and smoother operation. I kept the stock spring and it hits... | By Foam Flinger | Facebook
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