Geissele AR-15 Super Modular Rail MK14 M-LOK - 15" Black
$375.00 at Brownells · 4 stores
In stock
Best price
$375.00at Brownells
Out of stock checked Oct 23, 2026
In stock now instead
- Geissele AR-15 Super Modular Rail MK14 M-LOK - 15" Black $375.00at Brownells
- Super Modular Mk16 SM Rail 13.5" M-LOK For AR-15 DDC $375.00at Ammunition Depot
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells Best price | $375.00checked Oct 23, 2026 | Out of stock | Buy at Brownells | |
| OpticsPlanet | $375.00Salechecked Oct 23, 2026 | Out of stock | Buy at OpticsPlanet | |
| MidwayUSA | $375.00checked Oct 23, 2026 | Out of stock | Buy at MidwayUSA |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Similar handguards in stock
This part is out of stock at every store we track. These similar handguards are in stock, with today's prices.
Super Modular Mk16 SM Rail 13.5" M-LOK For AR-15 DDC
$375.00 at Ammunition Depot · 7 stores
In stock
Price history
Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Brownells | $375.00 | $375.00 | $375.00 |
| MidwayUSA | $375.00 | $375.00 | $375.00 |
| OpticsPlanet | $375.00 | $375.00 | $375.00 |
Since Sep 27, 2026.
About this part
The Mk 4 15" M-LOK Super Modular Rail, BLK is a 15" AR-15 handguard from Geissele Automatics. It's sold by 3 stores, all at $375.00.
Fits and works with
- Handguard length
- 15" · Barrels
Specifications
- Manufacturer
- Geissele Automatics
- Color
- Black
- Platform
- AR-15
- Length
- 15"
From the manufacturer
The Super Modular Rail MK4 M-LOK™ is Geissele’s ultra-lightweight M-LOK option. These rails are purpose-built and feature integrated M1913 picatinny rail sections at the fore of the rail in the 3, 6 and 9 o’clock positions. Maximum venting for heat dissipation also dramatically reduces the rails overall weight, while maintaining its same strong and rigid platform.
The MK4 M-LOK rail features M-LOK slots at the 3, 6 and 9 o’clock positions as well as the upper 45° quadrants. This allows the user to keep the weight on the rail system down, while keeping the modularity and versatility to attach accessories as necessary.The rails include a .750" low profile stainless steel Geissele Gas Block.
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