Airsoft Upgrades

[MM] 6.03mm Inner Barrel for WA M4/M16 GBB [368mm]

Brand: MMCategory: GBBR Inner Barrels1 retailer

Currently out of stock across all retailers.

Prices last checked July 30, 2026 across 1 retailer.

[MM] 6.03mm Inner Barrel for WA M4/M16 GBB [368mm] price comparison: the lowest price is $25.04 at SixMM, and the median across 1 tracked listing is $25.04.

Powerplant: GBBR

Fits models: WA-pattern / GHK

Compatible with: M4/AR

See all WA-pattern / GHK magazines & fitment →

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

Where to buy the [MM] 6.03mm Inner Barrel for WA M4/M16 GBB [368mm]: prices at 1 retailer

  • SixMM: $25.04 — Out of Stock

Frequently asked questions about the [MM] 6.03mm Inner Barrel for WA M4/M16 GBB [368mm]

How much does the [MM] 6.03mm Inner Barrel for WA M4/M16 GBB [368mm] cost?
The [MM] 6.03mm Inner Barrel for WA M4/M16 GBB [368mm] ranges from $25.04 across 1 retailer. Prices are updated regularly from each store's live catalog.
Is the [MM] 6.03mm Inner Barrel for WA M4/M16 GBB [368mm] in stock?
The [MM] 6.03mm Inner Barrel for WA M4/M16 GBB [368mm] 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 [MM] 6.03mm Inner Barrel for WA M4/M16 GBB [368mm] compatible with?
It is designed for GBBR platform and fits WA-pattern / GHK model.
Is the [MM] 6.03mm Inner Barrel for WA M4/M16 GBB [368mm] a good gbbr inner barrels upgrade?
The [MM] 6.03mm Inner Barrel for WA M4/M16 GBB [368mm] by MM is listed in our GBBR Inner Barrels category and is priced from $25.04. 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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