FAR Site has multiple launchers.  These launchers include: Baxter T-Rail, Microcosm T-Rail, Newman Launch-Rack, Newman 20-Foot Button-Rail, Newman 10-Foot Button-Rail, 3/16" Rod, and 1/4"-Rod.

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Newman Launch-Rack, Dimensions 48"x 48"x 20', Rocket Diameter: 6" to 12"

100_0056 copy
100_0057 copy

Baxter 60-Foot T-Rail, Baxter Launch Lugs

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Microcosm 60-Foot T-Rail, Microcosm Launch Lugs

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Wire Launchers