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Product Description

The Rossi Neptune 10.5” SAS is inspired by the L119A2 used by the UKSF (or British special forces) since 2014. It is the last evolutionary step after Colt Canada (also known as Diemaco) equipped them in the late 90s with the C8SFW (also known as L119A1), a variant of the C8 used by Canadians.

These new models are available in both black and a combination of black and tan/bronze, with full-metal body and handguards. Their robustness and solid assembly of the materials provides a sturdy feel and it shows that there is a very well done CNC work in the RIS that can compete in terms of quality with other high-end brands. There are markings on both sides of the replica.

This rifle boasts Full Metal construction, an 8mm Quick Change Spring System Gearbox, Programmeable Mosfet, precision 6.02mm Inner Barrel, Maple Leaf 60º Super Macaron Bucking twinned with Maple Leaf Omega Nub make this a seriously High Value for Money Rifle, ready to rock at 330fps right out of the box, but also ripe for upgrade.

This Neptune rifle from ROSSI has their latest V.2 programmable trigger, which allows semi, auto, binary and 2, 3, 4 or 5 burst fire modes out the box. 

• Programmable Electronic trigger with active brake
• Combined 16:1 CNC gears for higher ROF
• Piston with steel teeth
• Bushings with 8 mm bearings
• QD metal spring guide with bearing
• Piston head with bearing
• CNC Aluminium nozzle with o-ring

• 6,02 mm precision barrel
• 300 mm inner barrel
• One-piece outer barrel
• Weight: 2500 g
• Length: close: 740 mm-810 mm
• CNC Light 10.5" handguard
• Metal folding sights
• Metal receiver
• Metal stock tube
• Collapsible nylon fibre stock
• 2x Polymer mid-cap 120 bbs magazines

Brand Rossi
Weapon Category Rifle
Weapon Powered By Electric
FPS 301 - 350
Construction Full metal
Hop Up Adjustable
Variant / Platform M4
Fire Mode Safe/Single/Auto
Battery Included No
Charger Included No



Delivery & Returns

For Small items smaller than pistol size, we use Royal Registered Mail within UK.

Track parcel link:

Parcel force for international order to Europe or other part of the world. If you are not sure the fee, please email us.

We have 7 days return policy after you received the items, but the full refund is based on the items or parts not be used & installed.  If the parcel has been damaged on delivery, please keep the parcel as is and email us the pic straight away. So we can deal with the delivery company about the damage.

We cannot offer refunds for products that have been used and are simply being returned because the customer no longer likes it.

The warranty does not cover:

  • Accidental damage (including magazine feed lips & damage from skirmishing).
  • Any routine maintenance required.
  • Any faults arising from misuse; this includes use of poor quality bbs, any internal damage caused by jammed BBs, overcharging batteries or using the incorrect battery or charger for the gun.
  • Any faults arising from using the wrong gas for temperature conditions, for example Tokyo Marui and other ABS guns must only use 144a gas when ambient temperatures are above 10 Degrees Centigrade.  In very hot conditions, i.e 25 degrees C and above, some pistols with metal slides must only use 144a gas (this is because gas pressure is increased with temprature). Every gas gun is different and you must check the gas you are using is correct.
  • Any faults arising from overcharging of batteries.
  • Any faults arising from repairs / upgrades / maintenance not carried out by us.
  • Any products that have been altered or adjusted in any way from their original format (unless the alterations were carried out by our technicians).
  • Customised items cannot be returned, this includes painted two toned VCRA compliant guns.
  • Normal wear and tear to parts such as, but not limited to gears, pistons, tappet plates,seals and gaskets.

Rossi L119A2 Style Neptune SAS 10.5 AEG with Mosfet (Full Metal - Programmable Trigger - Black)

Item in Stock (1 Available)