improve reliability and suppress bolt bounce by using two springs for recoil verses the traditional single spring

HIGH QUALITY ALUMINUM ONE PIECE BARREL BUILT TO RESIST DAMAGE

Rail segments can be attached to the rail

Fiber Optic Front Sights and Adj

HPA System Bundle - HK Army Tank, HPA Line, MRS Regulator HPA Line:Neon Yellow improve reliability and suppress boltPACKAGE INCLUDES: HK Army Aluminum Tank HPA Line Ultra Compact Regulator Fill Level Gauge TANK: The aluminum tanks come with the standard High Pressure compressed air regulator set to the standard output pressure of 800psi. Aluminum Tank 48ci 3000psi Output Pressure 800psi Fill Level Gauge REGULATOR: This ultra compact regulator stands just 3 inches tall and threads directly onto the HPA tank. In so doing it eliminates the need for a separate UFA and