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Super Modular Mk16 SM Rail 13.5" M-LOK For AR-15 DDC

Super Modular Mk16 SM Rail 13.5" M-LOK For AR-15 DDC

Geissele Automatics · Rails & Handguards

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Best price

$318.75at MidwayUSA

In stock Sale Lowest in 30 dayschecked Nov 10, 2026

Buy at MidwayUSA

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Where to buy

StorePriceAvailabilityBuyAdd to build
MidwayUSA Best price $318.75Salechecked Nov 10, 2026 In stock Buy at MidwayUSA
Brownells $375.00checked Nov 10, 2026 In stock Buy at Brownells
OpticsPlanet $375.00Salechecked Nov 10, 2026 In stock Buy at OpticsPlanet
Ammunition Depot $375.00checked Nov 10, 2026 In stock Buy at Ammunition Depot
Battlehawk Armory $284.99checked Nov 10, 2026 Check store Buy at Battlehawk Armory
AR15Discounts $375.00checked Nov 10, 2026 Check store Buy at AR15Discounts
Dirty Bird $375.00checked Nov 10, 2026 Check store Buy at Dirty Bird
Classic Firearms $375.00checked Nov 10, 2026 Check store Buy at Classic Firearms
Palmetto State Armory $375.99checked Nov 10, 2026 Check store Buy at Palmetto State Armory
GunMag Warehouse $375.99checked Oct 26, 2026 Out of stock Buy at GunMag Warehouse

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: $318.75 at MidwayUSA. Dashed line = out of stock. Tracking since Sep 27, 2026.

Show the prices as a table
StoreLatestLowestHighest
AR15Discounts$375.00$375.00$375.00
Ammunition Depot$375.00$375.00$375.00
Battlehawk Armory$284.99$279.14$284.99
Brownells$375.00$375.00$375.00
Classic Firearms$375.00$375.00$375.00
Dirty Bird$375.00$375.00$375.00
GunMag Warehouse—$375.99$375.99
MidwayUSA$318.75$318.75$375.00
OpticsPlanet$375.00$375.00$375.00
Palmetto State Armory$375.99$375.99$375.99

Since Sep 27, 2026.

About this part

The Super Modular Mk16 SM Rail 13.5" M-LOK For AR-15 DDC is a 13.5" AR-15 handguard from Geissele Automatics. It's sold by 10 stores (4 in stock), from $284.99 to $375.99. The lowest in-stock price in the last 30 days was $318.75 at MidwayUSA.

Fits and works with

Handguard length
13.5" · Barrels

Specifications

Manufacturer
Geissele Automatics
Platform
AR-15
Length
13.5"
Attachment
M-LOK

From the manufacturer

The Super Modular Rail 13.5" (SMR) MK16 M-LOKA(R), NSN# 1005-01-672-4794 (13.5"), has been adopted by USASOC for the URG-I program (Upper Receiver Group Improved). The Geissele Super Modular Rail MK16 offers unmatched performance for the most demanding shooters. Mounted to your AR-15 upper using the updated version of the proven Geissele Barrel Nut design, the MK16 is not only easy to install and maintain but offers superior rigidity. Anti-rotation tabs and set-screws ensure that your rail will won't rotate, even under the most extreme conditions of use. M1913 picatinny rail on top and M-LOK(TM) slots on every quadrant ensures maximum customization for all your ac Mfg: Geissele Automatics

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$318.75 at MidwayUSA
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