Quick change of barrel length and rail system length.
Silverback SRS Sport series comes in 20" Outer Barrel.
Adjustable Hop up w/ external dials.
6.05mm AEG type precision inner barrel.
Available in Black, Tan, OD w/
Recommended for the Silverback SRS A1 Sport (20 inches) Push Bolt Licensed by Desert Tech - OD (Left Hand)