Best price
$288.59at Kentucky Gun Co
In stock Lowest in 30 dayschecked Nov 13, 2026
Fits and works with
- Handguard length
- 10.5" · Barrels
Specifications
- Manufacturer
- Geissele Automatics
- Platform
- AR-15
- Length
- 10.5"
- Attachment
- M-LOK
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Kentucky Gun Co Best price | $288.59checked Nov 13, 2026 | In stock | Buy at Kentucky Gun Co | |
| Brownells 17.76% off · ends Nov 15 · exclusions apply | $350.00checked Nov 13, 2026 | In stock | Buy at Brownells | |
| OpticsPlanet | $350.00Salechecked Nov 13, 2026 | In stock | Buy at OpticsPlanet | |
| Ammunition Depot | $350.00checked Nov 13, 2026 | In stock | Buy at Ammunition Depot | |
| GunMag Warehouse | $350.99checked Nov 13, 2026 | In stock | Buy at GunMag Warehouse | |
| Battlehawk Armory | $260.99Salechecked Nov 13, 2026 | Check store | Buy at Battlehawk Armory | |
| GrabAGun | $325.00checked Nov 13, 2026 | Check store | Buy at GrabAGun | |
| AR15Discounts 5% off | $350.00checked Nov 13, 2026 | Check store | Buy at AR15Discounts | |
| Dirty Bird | $350.00checked Nov 13, 2026 | Check store | Buy at Dirty Bird | |
| Classic Firearms | $350.00checked Nov 13, 2026 | Check store | Buy at Classic Firearms | |
| Palmetto State Armory | $350.99checked Nov 13, 2026 | Check store | Buy at Palmetto State Armory |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Lowest in-stock price in the last 30 days: $288.59 at Kentucky Gun Co. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| AR15Discounts | $350.00 | $350.00 | $350.00 |
| Ammunition Depot | $350.00 | $350.00 | $350.00 |
| Battlehawk Armory | $260.99 | $260.99 | $273.54 |
| Brownells | $350.00 | $350.00 | $350.00 |
| Classic Firearms | $350.00 | $350.00 | $350.00 |
| Dirty Bird | $350.00 | $350.00 | $350.00 |
| GrabAGun | $325.00 | $325.00 | $325.00 |
| GunMag Warehouse | $350.99 | $350.99 | $350.99 |
| Kentucky Gun Co | $288.59 | $288.59 | $288.59 |
| OpticsPlanet | $350.00 | $350.00 | $350.00 |
| Palmetto State Armory | $350.99 | $350.99 | $350.99 |
Since Sep 27, 2026.
About this part
The Mk Mk4 10.5" M-LOK Super Modular Rail DDC is a 10.5" AR-15 handguard from Geissele Automatics. It's sold by 11 stores (5 in stock), from $260.99 to $350.99. The lowest in-stock price in the last 30 days was $288.59 at Kentucky Gun Co.
From the manufacturer
The Super Modular Rail MK4 M-LOK(TM) 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 45Adeg 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. Barrel nut wrench & gas block not in Mfg: Geissele Automatics
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