Silverback

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 4.00 mm internal nozzle – for original SRS & TAC-41 cylinder head

– POM piston ring

– NBR 80° Oring damper

– Stainless

TAC 41 Feeding Ramp Parts

SRS-A2 dust cover
Only for SRS-A2 Right Handed model.

This is a fully licensed replica of the Desert Tech SRS A2/M2 bullpup rifle. Each receiver has a unique CNC engraved serial number.

M120 spring for SRS-A1, pull bolt. 13 mm outside diameter, 11 mm inside. APS large type (can be use in APS-2, APS-T96, APS-SR2, M24).

APS 13 mm, 90 Newtons spring


This spring is following the “APS 13 mm standard” (for 9 mm outside diameter spring guide). It will fit any rifle compatible with this standard, including all SRS (except push mechanism) and all TAC-41. While being compress

“AEG” cut inner barrel, passivated brass, 6.05 mm bore, 330 mm long,


Ideal for:

– “330 mm” TAC-41 outer barrel used with “AEG” hopup unit.