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Established 2006. Kent's Only Authorised 5.11 Tactical Retailer

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Versatile carbine platform

The Nuprol Delta Vanguard Sentinel is a modern M4/AR-15 style AEG built around Nuprol’s Vortex programmable ETU. With a lightweight nylon fibre polymer body and M-LOK style handguard, it balances durability with easy handling for a wide range of playstyles.

Programmable firing modes

The Vortex ETU lets you choose semi only, 2, 3, 4 or 5 round burst, a binary trigger or full auto, all through the standard fire selector. Deans wiring sharpens trigger response and helps the rifle run efficiently on modern batteries.

Reliable Delta core

A reinforced Version 2 gearbox with 18:1 steel gears and 8mm bearings drives the action, while the rotary hop unit, 50 degree hop rubber and 6.03mm precision inner barrel deliver consistent accuracy. It fires around 330 to 350 FPS on 0.20g BBs, and the M90 quick change spring makes power adjustment simple.

Buying and support

As a black RIF this rifle requires UKARA registration or a valid VCRA defence. Pair it with kit from our airsoft range and rely on our Kent airsoft repair workshop for servicing.

General
BrandNuprol
ColourBlack
Platform The gun type and the real-world design it is based on.M4/AR-15
Performance
Fire Modes Semi fires one BB per trigger pull; full-auto keeps firing while the trigger is held.Semi, 2/3/4/5-round burst, binary, full auto
Magazine
Magazine Low-cap holds a smaller, realistic round count you top up more often, which many players find more immersive than a hi-cap.120-round mid-cap, M4/AR-15 compatible
Barrel
Inner Barrel The precision tube the BB travels down. A tighter bore (e.g. 6.03mm) can improve accuracy and is a popular upgrade.6.03mm precision
Other
Hop-upRotary unit with 50 degree hop rubber
GearboxReinforced Version 2, 18:1 steel gears, 8mm bearings
SpringM90 quick change
SeriesDelta Vanguard Sentinel
TypeAEG (Automatic Electric Gun)
Muzzle VelocityApprox 330 to 350 FPS with 0.20g BB
ETUVortex programmable electronic trigger unit
WiringDeans
Battery9.6v NiMH or 7.4v LiPo (not included)
MaterialNylon fibre polymer

Frequently asked questions

Do I need UKARA to buy the Sentinel?

Yes. This is a black realistic imitation firearm (RIF), so we can only sell it to UKARA registered buyers or those with another valid VCRA defence, who are 18 or over.

What firing modes does it have?

The Vortex ETU offers semi only, 2, 3, 4 and 5 round burst, a binary trigger and full auto, all selected through the standard fire selector.

What FPS does it fire?

It fires around 330 to 350 FPS on 0.20g BBs. The M90 quick change spring makes it easy to adjust power to your site limit.

Is a battery included?

No. It runs on a 9.6v NiMH or 7.4v LiPo battery via Deans wiring, but the battery and charger are sold separately.

Can you repair it if needed?

Yes. Our in-house Kent workshop offers full airsoft repair and servicing to keep the Sentinel running.