Delta Armory Freya Series Grandpower Licensed GP R15 Airsoft AEG Rifle – 13″ Skeleton M‑LOK / Black
The Delta Armory Freya Series GP R15 13″ Skeleton M‑LOK Airsoft AEG Rifle brings together cutting‑edge engineering, licensed authenticity, and performance‑enhancing electronics—making it one of the most advanced rifles in the Freya lineup. Fully licensed by Grandpower and built with a modern billet‑style receiver, this airsoft rifle blends rugged durability with refined, tactical aesthetics designed for competitive airsoft players who demand reliability and high‑speed responsiveness.
Authentic Grandpower Licensing & Premium Exterior Build
The GP R15 features official Grandpower trademarks on both sides of the receiver, delivering unmatched realism. Built from high‑quality CNC aluminum, the billet‑style receiver includes deep roll marks and precision laser etching, giving the rifle a professional, real‑steel appearance.
The standout feature of this model is its 13-inch Skeleton‑style CNC M‑LOK free‑float handguard, offering a slim, lightweight feel without sacrificing durability. This extended handguard provides abundant mounting space for grips, lights, and pressure pads while keeping the rifle balanced for both outdoor and CQB play.
Additional external highlights include:
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Functional bolt-stop hold-open for fast hop-up access
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Steel flash hider unique to the Skeleton model
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Front and rear folding iron sights
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Metal ambidextrous sling points
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Updated Delta Stock v2—fully adjustable with rubberized padding for enhanced comfort
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Improved Pistol Grip v2 featuring upgraded ergonomics and better motor-pressure adjustment
Built entirely from metal—including the handguard, receiver, trigger, sling loops, and other components—the R15 Skeleton M‑LOK delivers a sturdy, field-ready platform that feels premium in the hands.
Eagle ETU Optical Unit – Fast, Programmable, and Intelligent
One of the biggest upgrades in the Freya Generation 2 series is the integrated Eagle Optical Unit (ETU). This programmable MOSFET system offers:
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Faster trigger response
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Active braking
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Low-voltage battery protection
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Adjustable trigger sensitivity
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Adjustable trigger travel (via set screw inside trigger guard)
The ETU also monitors battery health and alerts the user with audible tones to prevent overcharging or undervoltage issues. Designed for 11.1v LiPo batteries, the rifle uses a Deans (T‑plug) connector for efficiency and reliability.
Programming the ETU is simple and takes only seconds using the included step‑by‑step process.
Battle‑Ready Internals Built for Longevity
Inside, the GP R15 Skeleton M‑LOK is powered by the same robust internal setup seen in the best Delta Armory models. Performance components include:
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SHS piston with full‑metal rack
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SHS piston wheel handle
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Rotary hop‑up chamber
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Precision 6.03mm inner barrel
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Durable metal gearset with 7mm bearings
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SHS feeder lever
This model also features the highly praised QRS Gen. 2 Quick‑Change Spring System, allowing players to swap springs without opening the gearbox—ideal for adjusting FPS limits for different fields.
Enhanced Upgrade Package Installed
Delta Armory goes above and beyond by pre-installing an impressive suite of CNC and high-torque upgrades, including:
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CNC 16:1 gearset
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CNC piston head
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CNC cylinder head
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CNC air nozzle
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CNC stainless steel cylinder
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CNC stainless steel spring guide
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High-torque motor
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6.03mm precision inner barrel
These upgrades make the R15 Skeleton 13″ an out-of-the-box powerhouse with optimized durability, consistency, and trigger response.
Perfect for Competitive Airsoft Players
With an FPS range of 380–400, full-metal construction, extended M‑LOK handguard, and advanced ETU electronics, the GP R15 Skeleton is engineered for players who want an aggressive, lightweight, and highly responsive rifle for both outdoor and close‑quarters environments.
Whether you’re upgrading your primary rifle or entering the competitive scene, the Delta Armory Freya Series GP R15 Skeleton M‑LOK offers unmatched value and performance.




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