Airsoft Upgrades

T-N.T. Studio APS-X HOP-UP System H+ Retrofit Kit for GHK M4 GBB (455mm)

Brand: T-N.T. StudioCategory: GBBR Buckings & Nubs1 retailer

Currently out of stock across all retailers.

Prices last checked July 29, 2026 across 1 retailer.

T-N.T. Studio APS-X HOP-UP System H+ Retrofit Kit for GHK M4 GBB (455mm) price comparison: the lowest price is $134.05 at eHobby Asia, and the median across 1 tracked listing is $134.05.

Powerplant: GBBR

Fits models: WA-pattern / GHK

Compatible with: M4/AR

See all WA-pattern / GHK magazines & fitment →

Which buckings fit GBBR? Compare fitment & degrees →

Where to buy the T-N.T. Studio APS-X HOP-UP System H+ Retrofit Kit for GHK M4 GBB (455mm): prices at 1 retailer

  • eHobby Asia: $134.05 — Out of Stock

Frequently asked questions about the T-N.T. Studio APS-X HOP-UP System H+ Retrofit Kit for GHK M4 GBB (455mm)

How much does the T-N.T. Studio APS-X HOP-UP System H+ Retrofit Kit for GHK M4 GBB (455mm) cost?
The T-N.T. Studio APS-X HOP-UP System H+ Retrofit Kit for GHK M4 GBB (455mm) ranges from $134.05 across 1 retailer. Prices are updated regularly from each store's live catalog.
Is the T-N.T. Studio APS-X HOP-UP System H+ Retrofit Kit for GHK M4 GBB (455mm) in stock?
The T-N.T. Studio APS-X HOP-UP System H+ Retrofit Kit for GHK M4 GBB (455mm) is currently out of stock across all 1 tracked retailer. You can set up a price alert to get notified when it becomes available again.
What is the T-N.T. Studio APS-X HOP-UP System H+ Retrofit Kit for GHK M4 GBB (455mm) compatible with?
It is designed for GBBR platform and fits WA-pattern / GHK model.
Is the T-N.T. Studio APS-X HOP-UP System H+ Retrofit Kit for GHK M4 GBB (455mm) a good gbbr buckings & nubs upgrade?
The T-N.T. Studio APS-X HOP-UP System H+ Retrofit Kit for GHK M4 GBB (455mm) by T-N.T. Studio is listed in our GBBR Buckings & Nubs category and is priced from $134.05. We aggregate prices from 1 retailer so you can compare and find the best deal. Check the price comparison table above for current pricing from each store.

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