VFC VMAG 30 Round GBB Magazine for M4 / HK416 (V3)

VFC VMAG 30 Round GBB Magazine for M4 / HK416 (V3) — the current-generation VFC gas magazine for VFC's M4, VR16, HK416 and SR-16 GBBR rifles. Lightweight build, renewed valve assembly, switchable dry-fire function, and the enlarged rear cover opening that fixes the bolt-catch reliability issue earlier V1 and V2 mags were known for. If you own a VFC GBBR — M4, HK416, VR16, SR-16, or one of the BCM-licensed variants — the VMAG is the official VFC spare mag for it. The V3 generation is the current production version, replacing the older M4G30 mags that VFC shipped through 2021. The visible difference is the enlarged rear opening on the upper cover; the functional difference is that this opening lets the bolt catch engage cleanly on the last round, which earlier mags struggled with under sustained fire. The internal valve assembly has also been redesigned for this generation. The result is more consistent gas release per shot, which translates directly to consistent muzzle velocity across the magazine's 30 rounds rather than the typical drop-off that some GBBR mags show toward the end of a magazine on a cold morning. Practical impact: the rifle still chronos within site limits on shot 28 the same as it did on shot 1. The switchable dry-fire function is the other headline feature. A small red lever on the magazine body switches between two modes: standard (bolt locks back when the magazine empties, mimicking real-steel behaviour and triggering reload muscle memory) and dry-fire (bolt continues to cycle on empty, useful for force-on-force training drills or for breaking in a new rifle without burning through a full mag every cycle). Switching modes takes a second and requires no tools. Construction is the standard VFC mix of polymer body with metal reinforcement at the feed lips and gas valve. Approximately 350g loaded. Holds 30 rounds of 6mm BB. Compatible with any VFC GBBR using the M4-style mag well — that covers the whole VFC AR family back to the original M4 GBBR and forward through the current HK416 series. Verify magazine fit against your specific lower receiver if you're running a heavily modified or custom build. Specifications Specification Detail Manufacturer VFC (Vega Force Company) Generation V3 — current production, replaces earlier M4G30 series Capacity 30 rounds, 6mm BB Power source Green gas Compatibility VFC GBBR M4, M16, VR-16, SR-16, HK416 and BCM-licensed series with M4 magwell Dry-fire function Switchable — red lever toggle on magazine body Bolt-catch behaviour Locks bolt on empty in standard mode (V3 improvement over V1/V2) Construction Polymer body, metal feed lips and valve base Weight (loaded) Approximately 350g Colours available Tan, Black Origin Made in Taiwan ⚠ Green gas required: this magazine runs on green gas (propane-based airsoft fuel). Not compatible with CO2 unless your specific VFC GBBR has been built or converted for CO2 operation — check your rifle's manual. 💡 Titan Forge Airsoft tip: The standard advice for VFC GBBR owners is to carry at least 3–4 mags on a game day — GBBR rifles cycle gas fast and a single mag won't typically last more than a couple of CQB engagements. Match the mag colour to your rifle build (Tan with FDE-furnitured rifles, Black with milspec/tactical builds) for the cleanest aesthetic. Browse our wider accessories range for compatible gas, BBs, and magazine pouches.