HK416 LONG - SA-H21 EDGE 2.0™

About the brand Specna Arms

Based in Hong Kong, Specna Arms is one of the leading manufacturers of airsoft replicas and airsoft accessories on the market today. 1) Very good price range; 2) Excellent quality with attention to detail; 3) Fast spring change; 4) Wide range of different models.

Specna Arms guns are divided into four basic lines so that everyone can find their ideal: 

Specna Arms One  

Specna Arms Core

Specna Arms Edge

Specna Arms Edge 2.0

Descriptions of each series can be found directly on the products. 

About Specna Arms Edge 2.0

• Metal body with finish
• ESA 2 quick change spring system (QD system)
• Gate's Aster processor unit
• Special Solar Trigger trigger licensed from Gate
• Orion Mechabox
• Dean-T connector
• Load motor
• -2x MID-CAP S-MAG (125 rounds) included
• Spare M90 spring included 
• Tactical handle included 

Specna Arms Edge 2.0

The Edge 2.0 series represents the best line of guns from Specna Arms. The Edge 2.0 weapon brings back new innovations that bring a new even better enjoyment of airsoft.

The guns in this series are newly equipped with the ESA 2 QD system for quick spring changes. This differs from the first version, which the first Edge series is equipped with, in that you no longer have to change the spring through a long tube. Now the tube can simply be removed and the spring replaced directly. You do not need to carry a long screwdriver. 

The Edge 2.0 series guns are again equipped with the proven ORION reinforced mechabox. In addition to the reinforcement, the mechabox has radius recesses in the front of the mechabox that significantly reduce the risk of air impact cracks. The mechabox is also equipped with a metal nozzle, metal cylinder and piston head. A double seal is used for better sealing. The Mechabox is equipped with a part metal and part polymer spring guide rod and 8 mm metal bearings. The piston is made of polymer with metal gearing. Of course there are also metal wheels that make the gun capable of withstanding stronger springs. 

A leading advantage of the Edge 2.0 series guns is the already installed Aster processor unit from the well-known Gate brand.  

Aster's main features:

• firing mode adjustment (binary firing and burst capability)
• spring preload capability
• adjusting cadence (ROF) up to 50%
• Battery protection (polarity reversal) 
• Battery under-discharge protection
• Active brake
• shot count statistics
• gun diagnostics (unit includes a colored LED)
• the ability to control the unit via mobile app (must purchase Gate Control Station)
• option to upgrade the software with a one-time payment for even more advanced setup options

The Edge 2.0 series guns also feature a special Solar Trigger trigger that was designed under license from Gate. The trigger works perfectly with the Aster processor unit. This gives you even better response and comfort when shooting. 

The gun can easily handle 7.4V or 11.1V LI-Po batteries.

About the product: 

• The HK416 LONG - SA-H21 is a replica of the HK 416 from Heckler & Koch, used by special forces around the world. 
• The weapon is fitted with a classic all-metal forearm with RIS rails along its entire length. This allows the mounting of various accessories such as a laser or a grip.
• It features classic Heckler & Koch metal sights, which can be replaced at any time with a collimator or other optics.
• The gun is highly comfortable thanks to its adjustable stock and the fine texture on the grip.
• It also offers great accuracy thanks to its long barrel, making it an ideal weapon for long-range combat.
• ESA 2 quick change spring system (QD system)
• Gate's Aster processor unit
• Special Solar Trigger trigger licensed from Gate
• Orion Mechabox
• Dean-T connector
• Load motor
• 2x MID-CAP S-MAG (125 rounds) included
• Spare M90 spring included 
• Tactical handle included