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Rossi M4 Sentinel SIGMA AEG (Black)


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In the Box:

  • Rossi M4
  • Hi Cap Magazine

Defence Required



3-4 Days

FPS (ON 0.20g BB)


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Recommended Battery

lipo 7.4 1300mah stick, Lipo 7.4v Nunchuck

Suitable for

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The Rossi M4 Sentinel SIGMA is a polymer and metal RIF.  Out the box it shoots around the 320 fps on a 0.20g BB.  It has fire selection options of SAFE/SEMI/FULL and comes with a high cap magazine.  It also has an adjustable hop

• 18:1 Steel gears
• Piston with 14.5 steel teeth
• 8 mm Metal bushing
• QD spring guide
• Electronic trigger with active brake
• 6,02 mm precision barrel
• 180 mm inner barrel
• Metal outer barrel
• Weigth: 2000gr
• Length: 650mm-730mm
• CNC 5,5” handguardPolymer folding sights
• Polymer receiver
• Polymer stock tube
• Collapsible nylon fibre stock
• Metal hi-cap 300 bbs magazine

This does not come with a battery or charger

A valid defence is required to purchase any Airsoft Replica Firearm. If you don’t have a defence you must add Two Tone to your basket.

If you require a RIF to be painted two-tone to be VCRA compliant (No Valid Defence / Site Membership / UKARA etc) then please add TWO TONE to your order.

If you require a RIF to be painted two-tone to be VCRA compliant (No Valid Defence / Site Membership / UKARA etc) then please add TWO TONE to your order.

To purchase a realistically coloured Airsoft Replica Firearm (RIF) you must have a valid defence.  The most common of these is UKARA which stands for United Kingdom Airsoft Retailers Association and is essentially a database of registered players.  UKARA requires you must be a site member at any of the registered UK Airsoft sites.  This means you must play 3 games in MORE  than 56 Days. Once you become a member you are added to the database, please note paperwork and validation is required.  There are other types of defence, but UKARA is by far the most popular.  Please note this only applies to the gun, not the kit or accessories.

If you don’t yet have a defence, you can always add two-tone to your order. This simply means you have 51% painted in a bright colour such as green, blue or orange.  You can then purchase any RIF you wish.

If you have any questions regarding what is or isn’t a defence, or just looking for some general airsoft advice, then please drop us a call or contact us here


All items available in stock are available to collect in-store from our Nottingham or Sheffield bases. Alternatively, standard delivery is 3-5 days and is charged at £5.95 per order.

UK Airsoft sites are twinned with two playing sites in the midlands, both UKARA registered.  If Woodland is your preference, then take a look at Skirmish Airsoft. Located in the heart of Sherwood Forest, with several playing zones. It also has “Commando Rolls” catering facility and large ample car parking. The site has excellent facilities, including some safe-zone plug sockets for charging of batteries.

CQB your thing?  Within the store at UK Airsoft Nottingham we have 8000 square feet of purpose built CQB map.  It opens most Sundays and some midweek dates so get yourself booked in at Skirmish CQB.  There is also an electronic Attack Sense Target Range which is also open most days, but please call for availability.