Silverback TAC 41 Hop Up Unit GBB type


TAC-41 optional hopup unit, for “GBB” inner barrel & “GBB” hopup rubber

In stock

icon Description

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)

– T41-0228 barrel clip (SS304 laser cut)

– T41-0202 hopup wheel

– T41-0203 concave nub

– T41-0224 feeder

– T41-0225 feeder spring guide

– T41-1008 spring

– HOP-316001 60° flat hopup rubber, “GBB” type

– M5X6 ISO7380-2 screw

– M3X6 ISO7462 screws (x3)

– M4X8 DIN7991 screw

– M4X5 ISO4027 screws (x2)

– oring 8×2 (x1)

– 4 mm ball plunger


Use of optional cylinder head, not included, is compulsory, SBA-CYL-33

This TDC (Top Dead Center) hop up has 0.75 mm nub travel amplitude, divided in 50 positions (15 µm per clic). It includes a feeding system to avoid double feed, a 60° flat “GBB” hopup rubber (SBA-HOP-41), and it is compatible with “GBB” hopup rubbers and “GBB” inner barrels. To accommodate different brands of barrel, it can be assembled either with the barrel clip, or with the 3 M3X6 screws.


Because of a different inner barrel position inside the hopup, this unit requires inner barrels at least 3 mm shorter than the “AEG” hopup unit equipped with the same outer barrel to avoid inner barrel sitting out of the outer barrel.


– “510” outer barrel requires a 507 mm GBB inner barrel

– “420” outer barrel requires a 417 mm GBB inner barrel

– “330” outer barrel requires a 327 mm GBB inner barrel


This hopup unit is compatible with the advance hopup kit (SBA-HOP-34)

icon Brand

Silverback Airsoft

For marksmen who want to reach the next level, Silverback airsoft rifles are a great choice. Combining cutting-edge design with top-performing parts, these rifles are some of the most powerful and precise on the market. Silverback, founded by “airsoft addicts and serious wargamers”, aims to provide exceptional gear and deliver the most innovative, high-quality products that cater to every airsoft player – and our range of Silverback airsoft sniper rifles does not disappoint.
silverback airsoft
icon     Interest Free Finance Available 0% APR finance available on orders over £30

Paypal Pay in 3 

Socom Tactical are pleased to announce we are able to offer 0% interest-free finance on all orders to Paypal customers

For full information please check out our finance page

Choose Pay in 3 at checkout where PayPal is available, and enjoy the power to split your purchase into three interest-free payments, with no set up fees or charges.* It’s a great way to help you stay in control of your budget.
paypal pay in 3 Pay in 3: Easy as 1-2-3…
  1. Check out with Paypal
  2. Choose “Pay in 3” and complete your order
  3. Make the first payment now, the rest in two payments every month on the same date.
icon    Delivery Times and Costs View our Delivery Times and Costs

At Socom Tactical we aim to ship all orders same working Day During our working hours. All orders before 14:00 we aim to ship the same day. Shipments are shipped Monday, Wednesday, Thursday, Friday sadly due to no collections we are unable to ship Saturdays.

Pricing and Times

UK Mainland   £6 or Free on orders over £100

Europe   £10 - Delivery 3-7 working days (Excluding any customs delays)

Rest of the World   4- 14 Working Days (Excluding any customs delays)

Additional Time There May / Will be additional delays for Remote UK, Highlands and Islands, as well as Northern Ireland typically this, adds an additional 1-2 working day

UK Shipping Methods -   Typically most orders over £30 or 1kg are sent via DPD local Next Working Day delivery. You will receive an email and/or Text message from DPD with a 2-hour delivery window. Packages under 1kg or £30 will be shipped by Royal Mail First Class Tracking number can be viewed on your account

EAN: SBA-HOP-31 Category: Tag: