FAST Hop Up Unit with flat rubber

SRS FAST Hop Up Unit + hopup rubber (SBA-HOP-21)

FAST hopup for Silverback SRS-A1 (Field Adjustment SeTting Hopup). 6061 aluminium CNC machining hopup unit for the Silverback SRS-A1. This new design allows you to adjust your hopup in-game without any tool, in just few seconds. This hopup utilizes standard AEG hopup rubbers and AEG barrels. Packaging includes:

– CNC 6061 aluminium hopup body end (SRS425)
– CNC 6061 aluminium hopup body (SRS426)
– CNC 6061 aluminium hopup ring with laser markings (SRS427)
– CNC 6061 aluminium hopbar (SRS428)
– 8×2 oring
– 10×1 orings (x2)
– 5.8×0.75 orings (x2) – pre-installed
– M3x4 (DIN 913 / ISO 4026) 10.9 screws (x3)
– 1.5×8 stainless steel pin
– 60 degree silicone hopup rubber and nub (SBA-HOP-21)

Please do not overtighten the grub screws that secure barrel or else permeant damage will occur on the barrel.