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Specna Arms / Rock River Arms Licensed EDGE Series M4 AEG (Model: M4 PDW Keymod / Black)

ID: 90457 (AEG-SA-E012)
Specna Arms5902543980519SPE-01-033920-0090457
4.5 stars, based on 23 reviews
Specna Arms / Rock River Arms Licensed EDGE Series M4 AEG (Model: M4 PDW Keymod / Black)
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Specna Arms


MAP ProtectedExempt From Coupons
The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.
Canada Export CompliantCanadaExport Compliant
This gun has a muzzle velocity rating (FPS) between 366 and 500, and is compliant for export to Canada.
Free ShippingNo Coupon Required
Free shipping within lower 48 US states, no coupon code needed!


  • Aluminum alloy upper and lower receiver with deep laser engraved Rock River Arms (RRA) logos
  • Scratch and weather resistant nano coating
  • Nylon fiber furniture
  • GATE X-ASR Mosfet
  • ESA quick spring change system allows the spring to be changed without the need to disassemble your gun
  • Rotary type hopup with 6.03mm tight bore barrel
  • 380 fps spring pre-installed from factory, optional 310 fps (M90) spring included to reduce muzzle velocity
  • New Orion Gearbox with reinforced shell and internals

Manufacturer: Specna Arms

FPS Range: 375-390

EDGE is a completely new line of AEG carbines in the Specna Arms family, designed to meet expectations of even the most demanding players. Manufactured under license of Rock River Arms, a well recognized American real firearms manufacturer takes Specna Arms brand to a higher level of realism and performance.

The heart of the EDGE models is brand new ORION Gearbox. It is based on the and equipped with a main spring release function. Straight from the box it has a number of high-quality parts improving the performance and is ready for further tuning.
Specna Arms EDGE carbines are equipped with the new type of the rotary Hop which results in very precise and stable adjustment of BBs overlocking.
Specna Arms EDGE carbines have a built-in MOSFET X-ASR system provided by GATE! This is a unique cooperation between the Polish manufacturer and the well-known airsoft guns manufacturers. The highest quality MOSFET X-ASR unit will ensure the safety of the components, increase the trigger response and extend the life of the electronics and battery.
EDGE line like the rest of Specna Arms series is equipped with a functional quick spring change system, that enables you to quickly adjust the muzzle velocity without the use of specialized tools and with no need of removing the Gearbox from the body.

Every element of the replica had been made and fitted with the utmost care for every detail. In addition, the body features a Nano Coating finish that prevents scratches. The body also bears deeply engraved Rock River Arms markings as well as an individual serial number further authenticated by an additional hologram. Details that deserve note also include the QD pistol grip that provides easy and rapid access to the motor without having to use tools as well as a double-sided loop for the attachment of a tactical sling.

Length: 620mm - 700mm (Adjustable)
Weight: 2400g
Inner Barrel: 190mm
Magazine Capacity: 125rds
Muzzle Velocity: 310~380 FPS (Measured with 0.20g BBs)
Thread Direction: 14mm Negative
Gearbox: Ver 2 Metal, Fully Upgradeable
Motor: Long Type
Fire Modes: Semi/Full-Auto, Safety
Battery: 7.4v / 11.1v Buffer Tube LiPo Battery Recommended (Wired to rear w/ DEANS connector. Battery and Charger not included. We recommend using only high quality batteries and smart chargers)
Hopup: Yes, Adjustable
Package Includes: Gun, Magazine, Manual

Manufacturer: Specna Arms

About Specna Arms

Specna Arms is a brand manufactured in Hong Kong. Our aim is to deliver high-quality, good-looking and reasonably-priced Airsoft replicas. We are constantly developing both technical and visual aspects of our products to offer our customers the best airsoft experience.

23 Customer Reviews

(Write a review)

by Michael K. on 03/02/2023
"Specna makes a great airsoft rifle.. I love mine..hits hard right out of the box.. and you get a lot of bang for your buying another one for my son tonight...Michael k..
by Thomas S. on 05/12/2022
"Review for Specna Arms / Rock River Arms Licensed EDGE Series M4 AEG (Model: M4 Pistol / Black SA-E18)

Price paid $239 USD

Cozy little replica. Shoots ~300fps w/ .32 out of the box (roughly 1.32 joule), rate of fire is roughly 20-21RPS with an 11.1 Li-Ion 3000mah 16c Titan Battery. Accuracy is good as the replica is meant for short range, probably 125 feet or less. You can hit targets further than that but the intended purpose of this is obviously CQB based on the size. Hop up is easy to access and adjust, and holds during shooting. Gate X ASR works fine and doesn't heat up to repeated shots on semi.

Internally, everything was great. The Bevel and Spur gear needed some additional shims as they had 0.5mm of play. The only negative about the internals is that the spring guide is cheap plastic, but that shouldn't have any bearing on longevity or performance. Motor height needed adjustment by about 1mm pushed toward the Bevel gear.

Disassembly is painful, but you should only have to do it once for the reshim/cleaning. There is nothing noteworthy to need upgrading, 20rps is fast enough trigger response. Only meaningful upgrade would probably be Flat hop or Rhop as the stock barrel is already 6.03mm. For something that costs $239, it is probably the best value out of the box replica there is.
by Michael K. on 03/15/2022
"I dont think this is I bought this gun Saturday for 259 dollars.. 3 days later its on sale for 207...they haven't even shipped it to me yet.. why cat you let me have the gun for 207 and let me put the extra towards parts.. I don't have a complaint.. just don't see why if it hasn't left the warehouse yet why can't I get it at sale price.cant wait for my rock river.. im so excited..thank yall .

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