Internal Parts

TAC-41 Hopup unit, “GBB” type


TAC-41 optional hopup unit, for “GBB” inner barrel & “GBB” hopup rubber. Parts included:



– T41-0226 hopup body “GBB” (aviation grade CNC construction)
– T41-0227 hopup rubber socket (aviation grade CNC construc

This piston head feature:
– Viton Oring with a ventilated design.

– No airbrake, short, medium & long airbrake options (for 4.60 mm internal nozzle – for TAC-41 GBB cylinder head only).

– POM piston ring

– NBR 80° Oring damper

– Stainless ste

TAC 41 O-Rings

TAC 41 Stock Spacer Extension (3x)

Control Board Jumpers (x5)

The Action Army Type96 Teflon Cylinder Kit is design and construct to be as smooth and efficient as possible. The Teflon coating helps to reduce friction when the piston is cycling, and allows for more efficient compression.Action Army Teflon Cyl...

Aluminum Cylinder Head for Version 3 Gearbox

SRS Prowler Rubber Nub 60°

The Low Profile Prowler Nub is the smallest and lowest nub in the familiy and increases range and accuracy of your SRS Airsoft Sniper.

“GBB” type, flat hopup rubber, 50°


Initially designed for the TAC-41 “GBB” hopup, this hopup rubber can fit inside most of airsoft guns using “GBB” hopup rubber.

Transparent silicone for easier installation, blue color, 50° hardness.