Madbull SI Mega Fins KeyMod Airsoft Rifle Handguard Rail 11" in Black

Madbull SI Mega Fins KeyMod Airsoft Rifle Handguard Rail 11" in Black

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Madbull SI Mega Fins KeyMod Airsoft Rifle Handguard Rail 11" - Black

Looking to upgrade your airsoft rifle with added reach and full tactical flexibility? The Madbull SI Mega Fins KeyMod 11" Handguard Rail is built to deliver. Developed in collaboration with Strike Industries, this 11-inch rail is ideal for mid-length AR builds, offering extended accessory space without sacrificing balance. Its slim, ergonomic design helps maintain weapon control, making it an excellent choice for both tactical training and competitive airsoft scenarios.

The rail features the innovative “Mega Fins” heat management system—internal fins that draw barrel heat away to keep performance consistent even under rapid-fire conditions. The 7-sided KeyMod system allows full-circle mounting options for foregrips, flashlights, lasers, and more, while a continuous 1913 Picatinny top rail supports your scopes or backup iron sights. Finished in a matte black coat and built from lightweight alloy, it’s rugged, reliable, and ready for action.

Features

  • 11-inch KeyMod rail by Madbull & Strike Industries
  • Internal “Mega Fins” cooling system
  • 7-sided KeyMod layout for modular mounting
  • Continuous Picatinny 1913 top rail
  • Ergonomic and lightweight profile
  • Matte black tactical finish
  • Heat-resistant design for prolonged firing
  • Fits AR-15 and M4 platforms

What you get

  • Madbull SI Mega Fins 11" KeyMod Handguard
  • Mounting hardware
  • Installation guide
  • Protective packaging

Details

  • Length: 11 inches
  • Material: Lightweight alloy
  • Rail System: 7-sided KeyMod + continuous Picatinny rail
  • Cooling: Internal Mega Fins for heat dispersion
  • Compatibility: AR-15 / M4 platforms

SHIPPING Delivery Prices start from just £2.50 with free delivery on orders over £50 To the uk mainland *.

Tip - The easiest way to check the shipping cost for what you want to buy is put all of the stuff you want in to your basket. Then in your basket under the sub total there is a link for Estimate Shipping & Tax” click this and fill in the details and it will tell you the shipping cost and if you qualify for free shipping

Free Shipping

Free shipping on orders over £50 To UK Mainland (excluding some parts of scotland) 

Free shipping on orders over £100 To Northern Ireland & the Republic of ireland, Scottish highlands & islands, and I.O.M

Sorry we do not offer free shipping to the Channel Islands

Free shipping is a 5 working day service* (if you order Monday you get it the next Monday)

Delivery price (Mainland UK) 

Royal Mail              (depending on weight)          (2 Days Delivery*From  £2.50 
Economy               (post as much as you want)  (2 to 4 Days Delivery*)   £4.75   Flat Rate
Express shipping  (post as much as you want)  (1 to 2 Days Delivery*)   £5.95  Flat Rate

*Working days (Saturday and Sunday are classed as non working days)

we can arrange a Saturday delivery on request but costs £20 and you will need to call us to pay the balance after making an order.  

Delivery price (Ireland, Scottish Highlands & Islands)

Northern Ireland           From £ 5.95
Highlands and islands  From £5.95
I.O.M                             From £5.95 

Republic of Ireland £6.95  (Flat Rate how ever big or small your order is)
Channel Islands £ 7.95 (Flat Rate how ever big or small your order is)


Delivery price (International Tracked)

(Flat Rate how ever big or small your order is)

Republic of Ireland (IRL)----  £6.95  Price Drop WAS £16

Belgium (BE)---------------  £7.95 Price Drop WAS £15

Netherlands (NL)----------  £6.95 Price Drop WAS £15

Germany (DE)--------------  £6.95 Price Drop WAS £25

Luxembourg (LUX)--------- £9.95 - NEW 

France (FR)-----------------    £9.95 Price Drop WAS £25

Austria (AT)----------------   £11.95 - NEW 

Greece (GR)----------------   £12.95 NEW

Sweden (SE)--------------    £14.95  NEW

Denmark (DK)------------    £9.95 Price Drop WAS £15

Finland (FI)---------------   £15.95 NEW

Italy (IT)------------------   £11.95 Price Drop WAS £16

Portugal (PT)-------------   £11.95 Price Drop WAS £18

Poland (PL)----------------- £9.95 - NEW

Spain (ES)-----------------  £12.95  Price Drop WAS £23

Sweden (SE)--------------   £11.95   Price Drop WAS £15

Slovakia (SK)-------------    £11.95 - NEW

Slovenia (SL) ------------    £11.95 - NEW

Croatia (HR)--------------   £16.95 - NEW

Czech Republic (CZ)-----  £10.95 - NEW

Hungary (HU)------------   £10.95 - NEW

Bulgaria (BG)------------   £14.95 - NEW

Romania (RO)------------  £13.95 - NEW

Switzerland (CH)--------- £12.95 - NEW

Turkey (TR)--------------- £17.95 NEW

Channel Islands ----------£ 7.95  Price Drop WAS £15

 

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