Picatinny Rail Chunk Kit The Rail Chunk Kit includes: 1 Rail Chunk of the selected size 2(3)* Screws 2(3)* Backers Approx. Length End to End: 3 Slot: 1.7in 7 Slot: 3.3in 9 Slot: 4.1in 11 Slot: 4.8in *The 9 and 11 slot rail chunks use 3 screws and backers per... MSRP: Was: Now: $20.00 - $30.00