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Madbull SI Mega Fins KeyMod Rifle Handguard Rail 7"
Key Features
- Compact 7-inch KeyMod handguard by Strike Industries & Madbull
- Internal "Mega Fins" for effective barrel heat dispersion
- Heptagonal 7-sided KeyMod system for full accessory coverage
- Continuous Picatinny 1913 top rail for optics and attachments
- Lightweight alloy build for enhanced manoeuvrability
- Streamlined, ergonomic design for superior handling
Compact, Tactical, and Built to Perform
Description.
The Madbull SI Mega Fins KeyMod Rifle Handguard Rail 7" is a game-changer for shooters looking to optimise their compact AR builds. Developed through a collaboration between Strike Industries and Madbull, this sleek 7-inch rail balances strength, modularity, and heat management in a minimalist footprint. Whether you're building for close-quarters speed or tactical precision, the Mega Fins rail adds unmatched versatility without the weight.
The standout feature of this rail is its internal “Mega Fins” heat dispersion system. These built-in structures draw heat away from the barrel during prolonged use, helping maintain accuracy and user comfort. With a 7-sided KeyMod system covering the entire handguard, you’re free to mount your gear—grips, flashlights, lasers—wherever it suits your setup best. Meanwhile, the full-length Picatinny rail offers easy integration of optics and front sights, giving your AR rifle the modularity to handle any scenario.
Built from high-strength, lightweight alloy and finished in a tactical matte coat, the 7" Mega Fins handguard is as rugged as it is responsive. For shooters who value efficiency and control, this is the upgrade your rifle’s been waiting for.
Other Great Features are,
- Fast, easy installation with included hardware
- Designed for durability with zero added bulk
- Ergonomic profile enhances control and weapon manipulation
- Excellent for AR-15 and M4 compact builds
In the box:
- 1x Madbull SI Mega Fins 7" KeyMod Handguard
- Mounting hardware
- Installation guide
Specifications
Length: 7 inches
Material: Lightweight alloy construction
Rail System: 7-sided KeyMod with full Picatinny top rail
Heat Management: Internal Mega Fins for improved cooling
Compatibility: AR-15 / M4 style platforms
If you've seen the Madbull SI Mega Fins KeyMod Rifle Handguard Rail 7" listed for less somewhere else, let us know—we’ll beat that price. Visit our price match page for more details.
Sku :
17953Product Reviews
Delivery Prices start from just £2.50 with free delivery on orders over £75 To the uk mainland *.
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Free Shipping
Free shipping on orders over £75 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*) £4.95 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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