Airsoft Upgrades

T-N.T. Studio APS-X HOP-UP SYSTEM HOP-UP Retrofit Kit for KWA/KSC M4 GBBR (510mm)

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 HOP-UP Retrofit Kit for KWA/KSC M4 GBBR (510mm) price comparison: the lowest price is $108.39 at Rainbow8, and the median across 1 tracked listing is $108.39.

Powerplant: GBBR

Fits models: KWA LM4

Compatible with: M4/AR

Which buckings fit GBBR? Compare fitment & degrees →

Which inner barrel fits GBBR? Compare length, bore & prices →

Which nozzle fits GBBR? Compare fitment & prices →

Where to buy the T-N.T. Studio APS-X HOP-UP SYSTEM HOP-UP Retrofit Kit for KWA/KSC M4 GBBR (510mm): prices at 1 retailer

  • Rainbow8: $108.39 — Out of Stock

Frequently asked questions about the T-N.T. Studio APS-X HOP-UP SYSTEM HOP-UP Retrofit Kit for KWA/KSC M4 GBBR (510mm)

How much does the T-N.T. Studio APS-X HOP-UP SYSTEM HOP-UP Retrofit Kit for KWA/KSC M4 GBBR (510mm) cost?
The T-N.T. Studio APS-X HOP-UP SYSTEM HOP-UP Retrofit Kit for KWA/KSC M4 GBBR (510mm) ranges from $108.39 across 1 retailer. Prices are updated regularly from each store's live catalog.
Is the T-N.T. Studio APS-X HOP-UP SYSTEM HOP-UP Retrofit Kit for KWA/KSC M4 GBBR (510mm) in stock?
The T-N.T. Studio APS-X HOP-UP SYSTEM HOP-UP Retrofit Kit for KWA/KSC M4 GBBR (510mm) 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 HOP-UP Retrofit Kit for KWA/KSC M4 GBBR (510mm) compatible with?
It is designed for GBBR platform and fits KWA LM4 model.
Is the T-N.T. Studio APS-X HOP-UP SYSTEM HOP-UP Retrofit Kit for KWA/KSC M4 GBBR (510mm) a good gbbr buckings & nubs upgrade?
The T-N.T. Studio APS-X HOP-UP SYSTEM HOP-UP Retrofit Kit for KWA/KSC M4 GBBR (510mm) by T-N.T. Studio is listed in our GBBR Buckings & Nubs category and is priced from $108.39. 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.

More GBBR Buckings & Nubs parts to compare