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Mk Mk4 10.5" M-LOK Super Modular Rail DDC

Geissele Automatics · Rails & Handguards

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Mk Mk4 10.5" M-LOK Super Modular Rail DDC

Best price

$288.59at Kentucky Gun Co

In stock Lowest in 30 dayschecked Nov 13, 2026

Buy at Kentucky Gun Co

Compare 11 stores

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

StorePriceAvailabilityBuyAdd 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
StoreLatestLowestHighest
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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$288.59 at Kentucky Gun Co
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