Products tagged with silverback internals

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 construction)

– T Read more

TAC-41 Picatiny/Mlok short rail for TAC-41 PThis rail section will fit the TAC-41 polymer stock. It’s mounted on the lateral MLOK slots with 2 Nylon lugs. A rubber pad pushed by a grub screw will help you to adjust the vertical alignment (canceling the fr Read more

This kit include:
– T41-0240, Fine tuning wheel (aviation grade CNC construction with laser marking)

– T41-0241, reinforced feeder (stainless steel CNC construction)

– T41-0242, low nub (stainless steel CNC construction)

– T41-0243, high nub (stainles Read more

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 steel CNC Read more

TAC-41 Picatiny/Mlok long rail for TAC-41 P
This rail section will fit the TAC-41 polymer stock. It’s mounted on the lateral MLOK slots with 4 Nylon lugs. A rubber pad pushed by a grub screw will help you to adjust the vertical alignment (canceling the f Read more

“GBB” type, flat hopup rubber, 60°
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, Light blue color, 60° hardness. Read more

TAC-41A HandguardThis handguard is attached directly to the aluminum chassis of the TAC-41 A

Full length Picatinny rail on top
8 and 1/2 MLOK slots on each side
4 and 1/2 MLOK slots on each 45° lower side
4 and 1/2 MLOK slots on the under side
6000 serie Read more

TAC-41 cylinder head “GBB”Optional cylinder head for the TAC-41, “GBB” version, for optional/GBB hopup unit (SBA-HOP-31). 4.60 internal diameter nozzle, Oring included, stainless steel CNC construction.


Compatible with (must be used with a “GBB” hopup Read more

TAC-41 spring guide stopper tool
This tool has been designed for player who disassembly often the bolt of their TAC-41, typically for storage in a rigid case, but also for technician who enjoy good tools. Stainless steel CNC construction, including a bla Read more

APS 13 mm, 150 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 compresse Read more

“GBB” type, flat hopup rubber, 70°
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, yellow color, 70° hardness. Read more

“GBB” cut inner barrel, passivated brass, 6.05 mm bore, 507 mm long,Ideal for:
– “510 mm” TAC-41 outer barrel used with “GBB” hopup unit. Read more

APS 13 mm, 120 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 compresse Read more

CNC Steel version of the variable mass piston body, for extreme mass configuration (55.1 grams instead of 19.0 grams for the aluminium version).
Compatible with:



– original SRS piston (SBA-BPS-13)

– original TAC-41 piston (SBA-BPS-30)

– variable ma Read more

TAC-41, hopup replacement parts set (“GBB” Type version)
Replacement parts for the TAC-41 optional “GBB” Type hopup unit.



Parts included:



– T41-0228 barrel clip (SS304 laser cut)

– T41-0202 hopup wheel

– T41-0203 concave nub

– T41-0224 feeder Read more

Gunstand for the TAC-41. It uses a modified short polymer magazine and CNC aluminium parts with a black anodize coating and laser marking “TAC-41”.Delivered disassembled. Read more

“GBB” cut inner barrel, passivated brass, 6.05 mm bore, 327 mm long,Ideal for:
– “330 mm” TAC-41 outer barrel used with “GBB” hopup unit. Read more

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 compressed Read more

“AEG” cut inner barrel, passivated brass, 6.05 mm bore, 510 mm long,Ideal for:
– “510 mm” TAC-41 outer barrel used with “AEG” hopup unit.

– “20 inches” SRS outer barrel Read more

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 steel CNC cons Read more

“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. Read more

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 compressed Read more

“GBB” type, flat hopup rubber, 80°
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, red color, 80° hardness. Read more

“GBB” cut inner barrel, passivated brass, 6.05 mm bore, 417 mm long,Ideal for:
– “420 mm” TAC-41 outer barrel used with “GBB” hopup unit. Read more